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FritzSchulzi

VW Eos problems again and again the starter does not work

Hi everyone, I have a problem with my VW Eos Diesel, built in 2009. The following symptoms have occurred: longer cold start time, car won't start, strange engine noises, low battery on start, dim or flickering lights and a warning light in the speedometer. I suspect that "engine may not start" could be the cause. Has anyone had similar experiences and can give any tips on how the garage solved the problem? Thanks in advance!

(Translated from German)

Summary of the thread

A VW Eos Diesel from 2009 is experiencing issues such as longer cold start times, failure to start, strange engine noises, low battery, dim or flickering lights, and warning lights on the dashboard. The problems are suspected to be related to the electrical system, possibly involving the battery or alternator. Suggested solutions include checking the battery connections for corrosion, measuring the battery and alternator voltage with a multimeter, and using an OBD-II scanner to read error codes. If these checks don't resolve the issue, a detailed diagnosis at a garage is recommended.

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5 comment(s)

EdwinSchneid

Hey, I had a similar problem with my VW Golf Diesel, built in 2007. I also have some experience in this area. I had similar symptoms such as longer cold start times, strange noises and flickering lights. I then went straight to my garage. The diagnosis revealed that the fault was the result of a fault in the vehicle's electrical system. Fortunately, I didn't have to pay anything as it was apparently a known problem and the garage fixed it free of charge. I would need a little more information to help you: What specific warning lights do you see and have you already had a fault diagnosis? Greetings!

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FritzSchulzi (community.author)

Hey, thanks for your answer! I mainly see the battery symbol and occasionally the engine indicator light. I haven't had a detailed fault diagnosis done yet, but I wanted to ask before I take the car to the garage. Maybe I can carry out a few checks myself. Oh yes, the car has now covered 186543 km. Greetings!

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EdwinSchneid

Hey, of course, it's understandable that you want to do a few checks yourself before you go to the workshop. Your symptoms strongly suggest that there are problems with either the battery or the alternator. Here are a few simple steps you can take yourself: 1. **Check the battery:** Take a look at the battery to see if the connections are corroded or loose. If you have a multimeter, measure the voltage. A healthy battery should have about 12.6 volts. 2 **Check the alternator:** If your car is running, measure the voltage at the battery again. It should then be between 13.7 and 14.7 volts. If it is lower, this could mean that the alternator is not charging properly. 3 **Engine control light:** With the newer VW models, you can read out the error codes using an OBD-II scanner. If you have such a device to hand, this would be a good step to get more precise information. The battery symbol and the occasional engine indicator light indicate that the fault is actually in the electrical system. The fact that the car has now covered 186,543 km could also indicate a worn battery or a weak alternator. If you are still unsure after these checks, I would definitely recommend going to the garage and having a detailed diagnosis carried out. Garages often have special diagnostic equipment that can determine even more precisely what is wrong. Hope this helps you! Greetings!

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FritzSchulzi (community.author)

Hey, thanks for the detailed tips! I'll definitely try out the checks before I go to the garage. The battery and alternator check in particular sounds sensible. I even have a multimeter at home. And if I do have to go to the garage, I'll definitely mention your tips on detailed diagnostics. It's really great that you took the time to help me. I hope that the problem is solved soon and that my Eos starts reliably again. If I make any progress or the problem is solved, I'll let you know again. Thanks again and best regards!

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DeeKay

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community_author_wrote_on

Hey, thanks for the detailed tips! I'll definitely try out the checks before I go to the garage. The battery and alternator check in particular sounds sensible. I even have a multimeter at home. And if I do have to go to the garage, I'll definitely mention your tips on detailed diagnostics. It's really great that you took the time to help me. I hope that the problem is solved soon and that my Eos starts reliably again. If I make any progress or the problem is solved, I'll let you know again. Thanks again and best regards!

Greetings to you, Have you made any progress with your error analysis? Do you hope you have been able to rule something out? I had to measure everything on my Passat back then, but often it helps to just check all the plugs to see if they are OK and not possibly oxidized, for example. Greetings Daniel

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VW

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EOS