Hello all,
My 2004 W211 stalled when the weather get hot. It does not happen all the time normally after driving for a while during the day and about 75 percent leaving the traffic lights. It happened before about 2-3 years and i changed CPS and the problem went away. This year it happened and i figured the CPS went bad so i bought another on of Amazon (Bosch). and the run fine for 2 months and now it stalled once.
no code not CEL.
Any ideas?
Thank you for any advices.

 

Move to a colder climate!!

 

Thank you very much for a very useful reply.

 

Had a very similar problem. Car would stall only when it was warmer outside. Also swapped the CPS as it was cheap and easy to replace. Turned out to be a failing MAF sensor. The stalling got worse as the sensor started failing more often.

If you can get someone to check the readings off the MAF sensor to confirm it is failing (readings will be outside normal ranges), you can order the replacement Bosch part from your parts supplier. MB part # is 1120940048. Bosch part # is BOS-0280217515. You can order the official MB part (which is probably made by Bosch) but the price is double what you pay if you just get the Bosch part. This part can be swapped out very easily.