For the past few weeks I noticed that sometimes from cold my 2002 S210 will not rev above 2500 rpm.
As time has passed this has become more regular and today it is stuck below 2500 rpm. There have never been any error codes displayed. Nor does the S/W switch seem to have any effect.
Otherwise the car runs like a swiss watch and I love it. Fuel consumption seems normal - 33 - 40 MPG depending on the mix of driving.
Can anyone help me to diagnose and fix this fault please?
Not too many 320cdi owners here.
My older diesel act similar in cold weather. Occasionally it displays "pedal sensor connection" error, what puts the engine in some kind of "low performance mode". It goes away when the engine gets warm and I do restart. You know? It is a computer. When it doesn't work properly, you shut it down and start again.
Did you actually scan the car, or are you talking about dashboard displays?
Not too many 320cdi owners here.
My older diesel act similar in cold weather. Occasionally it displays "pedal sensor connection" error, what puts the engine in some kind of "low performance mode". It goes away when the engine gets warm and I do restart. You know? It is a computer. When it doesn't work properly, you shut it down and start again.
Did you actually scan the car, or are you talking about dashboard displays?
Hi, and thanks for your quick response
There are even fewer with a Brabus upgrade, I believe, but the car is a beaut
Anyway, I haven't had the car scanned so I'm talking about dashboard displays. I was under the impression that the dashboard display would indicate a fault that caused the driver to have to abort an overtaking maneuver because the arse had fallen out of the cars preformance... But I guess not.
So if I go to a dealer, and have the car scanned, would that give the exact cause? Will the dealer charge to diagnose the fault?
It take serious error to do it immediately, or smaller error lasting long time to trigger CEL on the dashboard. It is quite possible that you have error code stored in the car memory, but if you do several warm starts it might clear itself. Meaning driving to dealer could bring you nothing. US dealers charge arm and leg for few minutes of scanning, so most of members buy their own scanners, that go as low as $39.
This way you can scan the vehicle when the error happens.
It take serious error to do it immediately, or smaller error lasting long time to trigger CEL on the dashboard. It is quite possible that you have error code stored in the car memory, but if you do several warm starts it might clear itself. Meaning driving to dealer could bring you nothing. US dealers charge arm and leg for few minutes of scanning, so most of members buy their own scanners, that go as low as $39.
This way you can scan the vehicle when the error happens.
Hi,
I had a look around the web and on ebay and see that I can pick up a scanner quite cheaply, as you suggest.
Thanks for your help. I'll buy a scanner and take it from there.
Could this fault be related to the external temperature sensor?
I got a B service done a month ago and during this my battery was replaced. Since then I noticed that the temp indicator on the dash is showing about 5 degrees C above what it should be.
I've noticed a couple of threads on this board that mention the temp sensor can be to blame for many faults. Is this one of them?
If so, is it any easy and cheap fix, and can someone point me in the direction of a helpful thread?
I've noticed a couple of threads on this board that mention the temp sensor can be to blame for many faults. Is this one of them?
Seriously?
I doubt anybody has a knowledge to answer the question.
ohlord somehow traced exterior sensor affecting interior climate control, but he is willing to spend more time on stuff like that, than any MB technician would.
I am still suspecting that you are willing to throw in some part without scanning the car.
The temperature sensor is still more expensive, than a scanner.
Last edited by Kajtek1 : 01-08-2008 at 06:37 PM.
Reason: typo
Seriously?
I doubt anybody has a knowledge to answer the question.
ohlord somehow traced exterior sensor affecting interior climate control, but he is willing to spend more time on stuff like that, than any MB technician would.
I am still suspecting that you are willing to thru in some part without scanning the car.
The temperature sensor is still more expensive, than a scanner.
I have taken your advice and bought a scanner. Once I've scanned the car I'll take it from there.
Thanks for your help and advice. I really appreciate it
OK chaps, I scanned my car, and there are no error codes.
My car now rarely goes about 2500 rpm and changes up as if it's in winter mode. From memory, even in winter mode, my car would still rev higher than this.
Can any of you kind folks suggest what I could check next?
There is option on our climate control panel to run diagnostic on temperature sensors.
It is a shoot, but an easy one.
There is a file somewhere on this forum for gasoline engines, but shouldn't be much different on your diesel.
Linear Mode
