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mararoth1

Audi S5 Gear Display Dead: Major Transmission Issues

My 2016 Audi S5 automatic transmission is acting up with several concerning symptoms. The gear indicator on the instrument panel is completely dead, and I am experiencing major shifting issues. The transmission refuses to engage gears properly, slips frequently, and makes grinding noises during shifts. The car dashboard shows transmission-related error codes. I suspect the shift knob sensor problem might be related to the faulty gear indicator display, but I am not entirely sure. Has anyone dealt with similar transmission issues where the gear indicator stopped working? What was the root cause in your case, and how did your mechanic resolve it? Looking for insights particularly from those who have had this specific sensor problem fixed, as I would like to give my workshop a heads-up about potential causes before bringing it in.

4 comment(s)

emma_schwarz47

Had a very similar situation with my 2014 Audi S4. Being somewhat experienced with transmission issues, I recognized these symptoms immediately. The gear selector display on my instrument panel went completely dark, and the transmission started acting erratically. Initially thought it was just a sensor problem with the shift knob, but it turned out to be more serious. Took it to my regular workshop where they diagnosed a defective control unit that was causing both the gear indicator failure and the transmission behavior issues. The control unit was affecting multiple systems, which explained why both the display and shifting mechanics were compromised. The repair involved replacing the faulty control unit and recalibrating the transmission system. Total cost was around 1000 Euro, but it completely resolved both the shifting issues and the instrument panel display problems. To better assist with your situation, could you share: Are there any check engine lights on? When did the symptoms first appear? Have you noticed any other electrical issues? Does the car dashboard show any specific error codes? This information would help determine if your issue is similar to what I experienced and whether the control unit might be the culprit in your case as well.

emma_schwarz47

Had a very similar situation with my 2014 Audi S4. Being somewhat experienced with transmission issues, I recognized these symptoms immediately. The gear selector display on my instrument panel went completely dark, and the transmission started acting erratically. Initially thought it was just a sensor problem with the shift knob, but it turned out to be more serious. Took it to my regular workshop where they diagnosed a defective control unit that was causing both the gear indicator failure and the transmission behavior issues. The control unit was affecting multiple systems, which explained why both the display and shifting mechanics were compromised. The repair involved replacing the faulty control unit and recalibrating the transmission system. Total cost was around 1000 Euro, but it completely resolved both the shifting issues and the instrument panel display problems. To better assist with your situation, could you share: Are there any check engine lights on? When did the symptoms first appear? Have you noticed any other electrical issues? Does the car dashboard show any specific error codes? This information would help determine if your issue is similar to what I experienced and whether the control unit might be the culprit in your case as well.

emma_schwarz47

Had a very similar situation with my 2014 Audi S4. Being somewhat experienced with transmission issues, I recognized these symptoms immediately. The gear selector display on my instrument panel went completely dark, and the transmission started acting erratically. Initially thought it was just a sensor problem with the shift knob, but it turned out to be more serious. Took it to my regular workshop where they diagnosed a defective control unit that was causing both the gear indicator failure and the transmission behavior issues. The control unit was affecting multiple systems, which explained why both the display and shifting mechanics were compromised. The repair involved replacing the faulty control unit and recalibrating the transmission system. Total cost was around 1000 Euro, but it completely resolved both the shifting issues and the instrument panel display problems. To better assist with your situation, could you share: Are there any check engine lights on? When did the symptoms first appear? Have you noticed any other electrical issues? Does the car dashboard show any specific error codes? This information would help determine if your issue is similar to what I experienced and whether the control unit might be the culprit in your case as well.

emma_schwarz47

Had a very similar situation with my 2014 Audi S4. Being somewhat experienced with transmission issues, I recognized these symptoms immediately. The gear selector display on my instrument panel went completely dark, and the transmission started acting erratically. Initially thought it was just a sensor problem with the shift knob, but it turned out to be more serious. Took it to my regular workshop where they diagnosed a defective control unit that was causing both the gear indicator failure and the transmission behavior issues. The control unit was affecting multiple systems, which explained why both the display and shifting mechanics were compromised. The repair involved replacing the faulty control unit and recalibrating the transmission system. Total cost was around 1000 Euro, but it completely resolved both the shifting issues and the instrument panel display problems. To better assist with your situation, could you share: Are there any check engine lights on? When did the symptoms first appear? Have you noticed any other electrical issues? Does the car dashboard show any specific error codes? This information would help determine if your issue is similar to what I experienced and whether the control unit might be the culprit in your case as well.

emma_schwarz47

Had a very similar situation with my 2014 Audi S4. Being somewhat experienced with transmission issues, I recognized these symptoms immediately. The gear selector display on my instrument panel went completely dark, and the transmission started acting erratically. Initially thought it was just a sensor problem with the shift knob, but it turned out to be more serious. Took it to my regular workshop where they diagnosed a defective control unit that was causing both the gear indicator failure and the transmission behavior issues. The control unit was affecting multiple systems, which explained why both the display and shifting mechanics were compromised. The repair involved replacing the faulty control unit and recalibrating the transmission system. Total cost was around 1000 Euro, but it completely resolved both the shifting issues and the instrument panel display problems. To better assist with your situation, could you share: Are there any check engine lights on? When did the symptoms first appear? Have you noticed any other electrical issues? Does the car dashboard show any specific error codes? This information would help determine if your issue is similar to what I experienced and whether the control unit might be the culprit in your case as well.

emma_schwarz47

Had a very similar situation with my 2014 Audi S4. Being somewhat experienced with transmission issues, I recognized these symptoms immediately. The gear selector display on my instrument panel went completely dark, and the transmission started acting erratically. Initially thought it was just a sensor problem with the shift knob, but it turned out to be more serious. Took it to my regular workshop where they diagnosed a defective control unit that was causing both the gear indicator failure and the transmission behavior issues. The control unit was affecting multiple systems, which explained why both the display and shifting mechanics were compromised. The repair involved replacing the faulty control unit and recalibrating the transmission system. Total cost was around 1000 Euro, but it completely resolved both the shifting issues and the instrument panel display problems. To better assist with your situation, could you share: Are there any check engine lights on? When did the symptoms first appear? Have you noticed any other electrical issues? Does the car dashboard show any specific error codes? This information would help determine if your issue is similar to what I experienced and whether the control unit might be the culprit in your case as well.

mararoth1 (Author)

Thanks for sharing your experience. My car has 186957 KM and also began showing these symptoms shortly after my last service. The automotive electronics seem to be failing simultaneously, as the digital display goes completely blank when the transmission acts up. My check engine light started flashing last week, showing error code P0706. I checked the shift knob connection underneath, and it appears clean with no visible damage. The gear selector still moves smoothly, but the instrument panel simply wont register the gear position anymore. When driving, the transmission seems to get confused about which gear to select. I will have this looked at by a professional to diagnose if the control unit needs replacement like in your case. Really hoping its just a sensor issue rather than the full transmission.

mararoth1 (Author)

Thanks for sharing your experience. My car has 186957 KM and also began showing these symptoms shortly after my last service. The automotive electronics seem to be failing simultaneously, as the digital display goes completely blank when the transmission acts up. My check engine light started flashing last week, showing error code P0706. I checked the shift knob connection underneath, and it appears clean with no visible damage. The gear selector still moves smoothly, but the instrument panel simply wont register the gear position anymore. When driving, the transmission seems to get confused about which gear to select. I will have this looked at by a professional to diagnose if the control unit needs replacement like in your case. Really hoping its just a sensor issue rather than the full transmission.

mararoth1 (Author)

Thanks for sharing your experience. My car has 186957 KM and also began showing these symptoms shortly after my last service. The automotive electronics seem to be failing simultaneously, as the digital display goes completely blank when the transmission acts up. My check engine light started flashing last week, showing error code P0706. I checked the shift knob connection underneath, and it appears clean with no visible damage. The gear selector still moves smoothly, but the instrument panel simply wont register the gear position anymore. When driving, the transmission seems to get confused about which gear to select. I will have this looked at by a professional to diagnose if the control unit needs replacement like in your case. Really hoping its just a sensor issue rather than the full transmission.

mararoth1 (Author)

Thanks for sharing your experience. My car has 186957 KM and also began showing these symptoms shortly after my last service. The automotive electronics seem to be failing simultaneously, as the digital display goes completely blank when the transmission acts up. My check engine light started flashing last week, showing error code P0706. I checked the shift knob connection underneath, and it appears clean with no visible damage. The gear selector still moves smoothly, but the instrument panel simply wont register the gear position anymore. When driving, the transmission seems to get confused about which gear to select. I will have this looked at by a professional to diagnose if the control unit needs replacement like in your case. Really hoping its just a sensor issue rather than the full transmission.

mararoth1 (Author)

Thanks for sharing your experience. My car has 186957 KM and also began showing these symptoms shortly after my last service. The automotive electronics seem to be failing simultaneously, as the digital display goes completely blank when the transmission acts up. My check engine light started flashing last week, showing error code P0706. I checked the shift knob connection underneath, and it appears clean with no visible damage. The gear selector still moves smoothly, but the instrument panel simply wont register the gear position anymore. When driving, the transmission seems to get confused about which gear to select. I will have this looked at by a professional to diagnose if the control unit needs replacement like in your case. Really hoping its just a sensor issue rather than the full transmission.

mararoth1 (Author)

Thanks for sharing your experience. My car has 186957 KM and also began showing these symptoms shortly after my last service. The automotive electronics seem to be failing simultaneously, as the digital display goes completely blank when the transmission acts up. My check engine light started flashing last week, showing error code P0706. I checked the shift knob connection underneath, and it appears clean with no visible damage. The gear selector still moves smoothly, but the instrument panel simply wont register the gear position anymore. When driving, the transmission seems to get confused about which gear to select. I will have this looked at by a professional to diagnose if the control unit needs replacement like in your case. Really hoping its just a sensor issue rather than the full transmission.

emma_schwarz47

Thanks for the additional details. Based on the error code P0706 and symptoms you described, this does sound very similar to what I experienced with my S4. The combination of a blank electronic display and erratic transmission behavior matches exactly. While checking the shift knob connections was a good start, in my case the issue went deeper into the automotive electronics. The instrument panel problems combined with transmission confusion usually points to a control unit malfunction rather than just a sensor problem. The behavior you described with the gear selector moving fine mechanically but not registering on the instrument panel is exactly what happened to me before the full diagnosis revealed the control unit failure. Your higher mileage could also be a contributing factor. Since the symptoms started after service, have them check if any transmission-related work was done that might have triggered these issues. In my repair, they had to: 1. Replace the faulty control unit 2. Update the transmission software 3. Perform a complete system calibration Based on current parts costs, you might be looking at 800-1200 Euro for a similar repair, but that beats a full transmission replacement. Make sure they check the wiring harness connections to the control unit as well, as these can sometimes cause similar symptoms.

emma_schwarz47

Thanks for the additional details. Based on the error code P0706 and symptoms you described, this does sound very similar to what I experienced with my S4. The combination of a blank electronic display and erratic transmission behavior matches exactly. While checking the shift knob connections was a good start, in my case the issue went deeper into the automotive electronics. The instrument panel problems combined with transmission confusion usually points to a control unit malfunction rather than just a sensor problem. The behavior you described with the gear selector moving fine mechanically but not registering on the instrument panel is exactly what happened to me before the full diagnosis revealed the control unit failure. Your higher mileage could also be a contributing factor. Since the symptoms started after service, have them check if any transmission-related work was done that might have triggered these issues. In my repair, they had to: 1. Replace the faulty control unit 2. Update the transmission software 3. Perform a complete system calibration Based on current parts costs, you might be looking at 800-1200 Euro for a similar repair, but that beats a full transmission replacement. Make sure they check the wiring harness connections to the control unit as well, as these can sometimes cause similar symptoms.

emma_schwarz47

Thanks for the additional details. Based on the error code P0706 and symptoms you described, this does sound very similar to what I experienced with my S4. The combination of a blank electronic display and erratic transmission behavior matches exactly. While checking the shift knob connections was a good start, in my case the issue went deeper into the automotive electronics. The instrument panel problems combined with transmission confusion usually points to a control unit malfunction rather than just a sensor problem. The behavior you described with the gear selector moving fine mechanically but not registering on the instrument panel is exactly what happened to me before the full diagnosis revealed the control unit failure. Your higher mileage could also be a contributing factor. Since the symptoms started after service, have them check if any transmission-related work was done that might have triggered these issues. In my repair, they had to: 1. Replace the faulty control unit 2. Update the transmission software 3. Perform a complete system calibration Based on current parts costs, you might be looking at 800-1200 Euro for a similar repair, but that beats a full transmission replacement. Make sure they check the wiring harness connections to the control unit as well, as these can sometimes cause similar symptoms.

emma_schwarz47

Thanks for the additional details. Based on the error code P0706 and symptoms you described, this does sound very similar to what I experienced with my S4. The combination of a blank electronic display and erratic transmission behavior matches exactly. While checking the shift knob connections was a good start, in my case the issue went deeper into the automotive electronics. The instrument panel problems combined with transmission confusion usually points to a control unit malfunction rather than just a sensor problem. The behavior you described with the gear selector moving fine mechanically but not registering on the instrument panel is exactly what happened to me before the full diagnosis revealed the control unit failure. Your higher mileage could also be a contributing factor. Since the symptoms started after service, have them check if any transmission-related work was done that might have triggered these issues. In my repair, they had to: 1. Replace the faulty control unit 2. Update the transmission software 3. Perform a complete system calibration Based on current parts costs, you might be looking at 800-1200 Euro for a similar repair, but that beats a full transmission replacement. Make sure they check the wiring harness connections to the control unit as well, as these can sometimes cause similar symptoms.

emma_schwarz47

Thanks for the additional details. Based on the error code P0706 and symptoms you described, this does sound very similar to what I experienced with my S4. The combination of a blank electronic display and erratic transmission behavior matches exactly. While checking the shift knob connections was a good start, in my case the issue went deeper into the automotive electronics. The instrument panel problems combined with transmission confusion usually points to a control unit malfunction rather than just a sensor problem. The behavior you described with the gear selector moving fine mechanically but not registering on the instrument panel is exactly what happened to me before the full diagnosis revealed the control unit failure. Your higher mileage could also be a contributing factor. Since the symptoms started after service, have them check if any transmission-related work was done that might have triggered these issues. In my repair, they had to: 1. Replace the faulty control unit 2. Update the transmission software 3. Perform a complete system calibration Based on current parts costs, you might be looking at 800-1200 Euro for a similar repair, but that beats a full transmission replacement. Make sure they check the wiring harness connections to the control unit as well, as these can sometimes cause similar symptoms.

emma_schwarz47

Thanks for the additional details. Based on the error code P0706 and symptoms you described, this does sound very similar to what I experienced with my S4. The combination of a blank electronic display and erratic transmission behavior matches exactly. While checking the shift knob connections was a good start, in my case the issue went deeper into the automotive electronics. The instrument panel problems combined with transmission confusion usually points to a control unit malfunction rather than just a sensor problem. The behavior you described with the gear selector moving fine mechanically but not registering on the instrument panel is exactly what happened to me before the full diagnosis revealed the control unit failure. Your higher mileage could also be a contributing factor. Since the symptoms started after service, have them check if any transmission-related work was done that might have triggered these issues. In my repair, they had to: 1. Replace the faulty control unit 2. Update the transmission software 3. Perform a complete system calibration Based on current parts costs, you might be looking at 800-1200 Euro for a similar repair, but that beats a full transmission replacement. Make sure they check the wiring harness connections to the control unit as well, as these can sometimes cause similar symptoms.

mararoth1 (Author)

Thank you for the thorough explanation about the control unit. This seems to match my situation perfectly. The automotive electronics symptoms you described are identical to what I am experiencing. The error code P0706 combined with the gear indicator failure and transmission behavior definitely suggests a deeper issue than just a basic sensor problem. Given how the gear selector moves properly but fails to register, I am now more convinced it could be the control unit. I checked my service records and noticed they did perform some transmission fluid maintenance during the last visit. Will definitely mention this to the workshop when I bring it in. The blanking digital display and confused gear shifts match your experience too closely to ignore. I appreciate the cost estimate of 800-1200 Euro for the control unit replacement and recalibration. While not cheap, it is far better than needing a whole new transmission. Will schedule an appointment this week and make sure they inspect the complete system, including the wiring harness you mentioned.

mararoth1 (Author)

Thank you for the thorough explanation about the control unit. This seems to match my situation perfectly. The automotive electronics symptoms you described are identical to what I am experiencing. The error code P0706 combined with the gear indicator failure and transmission behavior definitely suggests a deeper issue than just a basic sensor problem. Given how the gear selector moves properly but fails to register, I am now more convinced it could be the control unit. I checked my service records and noticed they did perform some transmission fluid maintenance during the last visit. Will definitely mention this to the workshop when I bring it in. The blanking digital display and confused gear shifts match your experience too closely to ignore. I appreciate the cost estimate of 800-1200 Euro for the control unit replacement and recalibration. While not cheap, it is far better than needing a whole new transmission. Will schedule an appointment this week and make sure they inspect the complete system, including the wiring harness you mentioned.

mararoth1 (Author)

Thank you for the thorough explanation about the control unit. This seems to match my situation perfectly. The automotive electronics symptoms you described are identical to what I am experiencing. The error code P0706 combined with the gear indicator failure and transmission behavior definitely suggests a deeper issue than just a basic sensor problem. Given how the gear selector moves properly but fails to register, I am now more convinced it could be the control unit. I checked my service records and noticed they did perform some transmission fluid maintenance during the last visit. Will definitely mention this to the workshop when I bring it in. The blanking digital display and confused gear shifts match your experience too closely to ignore. I appreciate the cost estimate of 800-1200 Euro for the control unit replacement and recalibration. While not cheap, it is far better than needing a whole new transmission. Will schedule an appointment this week and make sure they inspect the complete system, including the wiring harness you mentioned.

mararoth1 (Author)

Thank you for the thorough explanation about the control unit. This seems to match my situation perfectly. The automotive electronics symptoms you described are identical to what I am experiencing. The error code P0706 combined with the gear indicator failure and transmission behavior definitely suggests a deeper issue than just a basic sensor problem. Given how the gear selector moves properly but fails to register, I am now more convinced it could be the control unit. I checked my service records and noticed they did perform some transmission fluid maintenance during the last visit. Will definitely mention this to the workshop when I bring it in. The blanking digital display and confused gear shifts match your experience too closely to ignore. I appreciate the cost estimate of 800-1200 Euro for the control unit replacement and recalibration. While not cheap, it is far better than needing a whole new transmission. Will schedule an appointment this week and make sure they inspect the complete system, including the wiring harness you mentioned.

mararoth1 (Author)

Thank you for the thorough explanation about the control unit. This seems to match my situation perfectly. The automotive electronics symptoms you described are identical to what I am experiencing. The error code P0706 combined with the gear indicator failure and transmission behavior definitely suggests a deeper issue than just a basic sensor problem. Given how the gear selector moves properly but fails to register, I am now more convinced it could be the control unit. I checked my service records and noticed they did perform some transmission fluid maintenance during the last visit. Will definitely mention this to the workshop when I bring it in. The blanking digital display and confused gear shifts match your experience too closely to ignore. I appreciate the cost estimate of 800-1200 Euro for the control unit replacement and recalibration. While not cheap, it is far better than needing a whole new transmission. Will schedule an appointment this week and make sure they inspect the complete system, including the wiring harness you mentioned.

mararoth1 (Author)

Thank you for the thorough explanation about the control unit. This seems to match my situation perfectly. The automotive electronics symptoms you described are identical to what I am experiencing. The error code P0706 combined with the gear indicator failure and transmission behavior definitely suggests a deeper issue than just a basic sensor problem. Given how the gear selector moves properly but fails to register, I am now more convinced it could be the control unit. I checked my service records and noticed they did perform some transmission fluid maintenance during the last visit. Will definitely mention this to the workshop when I bring it in. The blanking digital display and confused gear shifts match your experience too closely to ignore. I appreciate the cost estimate of 800-1200 Euro for the control unit replacement and recalibration. While not cheap, it is far better than needing a whole new transmission. Will schedule an appointment this week and make sure they inspect the complete system, including the wiring harness you mentioned.

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