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marthaeule1

Audi Q3 Headlight Beam Chaos: Range Control Fix Guide

Having trouble with my 2018 Audi Q3 (2.0L gas, 195000km). The headlight beam adjustment seems completely off, low beams are pointing all over the place. Warning light on the dash and error code stored. Pretty sure its the headlight range control system acting up. Has anyone dealt with something similar? Really want to avoid another expensive workshop visit after my last bad experience. Would appreciate tips on what exactly needs checking and potential repair costs. Thanks.

4 comment(s)

michaelschmitz1

Had a similar issue with my 2015 Audi Q5 2.0 TFSI. The auto-leveling system failed, causing erratic headlight beam patterns. The diagnostic revealed a defective servomotor in the headlight range control system. The adaptive headlights require proper function of several components. In my case, the control module was receiving incorrect signals from the faulty servomotor, triggering the warning light and storing error codes. This is a safety-critical system that needs professional attention. The repair involved: Full diagnostic scan, Replacement of the servomotor unit, Recalibration of the headlight control module, Testing of the auto-leveling system The headlight switch and associated wiring were also inspected as part of the repair process. This turned out to be a serious issue requiring specialized equipment for proper calibration. DIY attempts risk compromising night driving safety and could lead to oncoming traffic hazards. The complete repair took about 4 hours at an authorized workshop. Given the mileage on your Q3, this is a common wear point for the range control system components.

marthaeule1 (Author)

Thanks for sharing your Q5 experience. My lighting system issue got resolved last month and it runs perfectly now. The shop found a faulty headlight control module that was causing inconsistent light intensity adjustments. Did you remember roughly how much you paid for the complete fix? Also curious if youve had any other electrical gremlins pop up since the repair was done? Been paranoid about other potential issues with my car getting older.

michaelschmitz1

After getting the headlight malfunction fixed at the workshop, everything has worked flawlessly. The repair cost came to 1040 Euro for replacing the defective servomotor in the headlight range control system. The auto-leveling function now works perfectly, maintaining consistent beam adjustment while driving. No other electrical issues have surfaced in the past year since the repair. The adaptive headlights respond correctly to different driving conditions, and the beam pattern stays properly aligned. The workshop did a thorough job testing all related components, which likely prevented any follow-up problems. The complete fix was worth the investment considering the safety aspects of proper headlight function. They also updated the control module software during the service, which probably helped ensure long-term reliability.

marthaeule1 (Author)

Glad to report back on my repair experience. After taking my Q3 to the workshop, the headlight malfunction turned out to be more straightforward than expected. The faulty control module was causing the erratic beam adjustment issues. Total repair cost came to 890 Euro, which included the new module and complete system calibration. The auto-leveling feature works perfectly now, and the light intensity stays consistent during night drives. The mechanic found the headlight switch was actually fine, just the control module sending wrong signals. Took about 3 hours total for them to fix everything and verify proper beam adjustment on their alignment wall. Really relieved to have proper lighting again. No other electrical issues have shown up in the month since the repair. The warning light hasnt come back either. Definitely worth getting it done properly at a qualified shop despite my initial hesitation about repair costs.

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