Mercedes-Benz Cars & Trucks - Recent Questions, Troubleshooting & Support


Change the gearbox oil first that can slow gear change

Mercedes-Benz... | Answered 11 minutes ago


Looks like a failed relay:
"I sat in the car and started pushing the roll bar button. We heard a click every time I pushed it. My brother was at the back of the car and was trying to hear where the clicking was coming from. He realized it was coming from a relay switch so he took a screwdriver and tapped the top of the relay and **BAM** everything starts working! So through that we realized it was a bad relay".
Fixed my convertible top problems
4RA 007 791 011 4RA007791011 002 542 72 19 0025427219 New Hella Relay...

p1010264a-ahrcolpsyhjm2inoptyekkml-5-0.jpg Thanks to Benzworld.org
Title goes here

Mercedes-Benz... | Answered Yesterday


DIY Crankshaft Position Sensor BenzCranks No Start
Problems with the Crankshaft Position Sensor (CPS) on Mercedes-Benz cars are fairly common. If you have been experiencing stalling or no start conditions, a failed crankshaft position sensor is often the problem. Your CPS may have failed if the engine cranks but it will not start. At first, you may experience no start conditions intermittently. As the crankshaft position sensor fails completely, the car will no longer start or will die when you are driving. Starting problems are initially random, but more frequent when the engine is hot. Other symptoms of a failed crankshaft position sensor are poor acceleration, engine vibrations, poor throttle response, bad fuel economy, hesitation, engine stalls. The engine starts if you let it cool down. (Thanks to MB Medic)

Mercedes-Benz... | Answered Yesterday


Crankshaft Positioning Sensor Replacement
Problems with the Crankshaft Position Sensor (CPS) on Mercedes-Benz cars are fairly common. If you have been experiencing stalling or no start conditions, a failed crankshaft position sensor is often the problem. Your CPS may have failed if the engine cranks but it will not start. At first, you may experience no start conditions intermittently. As the crankshaft position sensor fails completely, the car will no longer start or will die when you are driving. Starting problems are initially random, but more frequent when the engine is hot. Other symptoms of a failed crankshaft position sensor are poor acceleration, engine vibrations, poor throttle response, bad fuel economy, hesitation, engine stalls. The engine starts if you let it cool down. If you are stuck on a parking lot and the car will not start, let the car cool down at least 30 minutes and then try again. ( Thanks to MB Medic)

Mercedes-Benz... | Answered Yesterday


Most likely under the hood in the fuse panel.

Mercedes-Benz... | Answered Yesterday


It is located under the passenger seat. May have to loosen the pass front seat mounting screws and remove the two rear screws and lift the seat up at the rear about 3 inches to replace it.
https://www.youtube.com/watch?v=o7hfpkJrfLo

https://www.ebay.com/itm/Mercedes-W164-W251-GL-ML-R-Class-NEW-GENUINE-Auxiliary-Battery-1-2AH-/112041275311?_trksid=p2349526.m4383.l4275.c10

000000 004039 Genuine OEM...... Other Part Numbers: 82533004001 / 825 33004 001 / 000000 004039

Mercedes-Benz... | Answered Yesterday


run the fault codes
indicators are that the heated oxygen sensor ( in the exhaust manifold before the cat converter ) is malfunctioning and not reporting the exhaust gas composition correctly so that the ECM can adjust the mixture
other codes that may show up are the ambient air temp sensor , The BARO sensor and MAF/VAF sensors all of which report to the ECM to keep the air /fuel mixture correct

2004... | Answered 2 days ago

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