CLS Coupe (C219) Discuss the CLS Coupe.

W219 ECU/wiring issues

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Old Oct 19, 2024 | 01:29 PM
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2009 CLS550
W219 ECU/wiring issues

ECU/wiring issues w219

Hey everyone! I have 2009 CLS550 with 100k miles on it. I’ve got a car in February with 94k miles on it, clean carfax and had the cluster light not working. Around 96k the car stopped turning on and threw a crank shaft position sensor and then misfire. Towed to a mechanic they said ECU has to be repaired because of motherboard. They fixed it. I was able to drive around another 2-3k miles and the car started to have the previous issues. Also I could be driving somewhere and the car turns off and then turns back on right away. So I took it back to the service and they found some harness ground wire issue so they changed the position of it, cleaned it and wrapped with electrical tape. Also had to send ECU for a repair because motherboard was fried. When car was ready even the cluster light was on working, I thought I’m going to have to replace it. Two day later after I picked up the car once it was ready it started to have the same issues, and the cluster light was off again, so I took it back to the service. Mechanic shop checked and said that ECU is ok, wires ok and I might have to put in a virgin ECU but I might still have the same issues because it has to do something with wiring but they can’t find, they would need to try to chase it where it comes from.

I already tired throwing money into the car and ready to burn this piece of ****.

Need suggestions.
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