yes i learned that the hard way about the TPS, my mechanic didn't even mention to me there was something mapped by Mercedes on the back end. However I still think that perhaps the TPS circuit issue was caused due to the ESP being set off while the sensor monitoring if the TPS is working failed.RUEY220, please understand that what I had previously posted is for generic code P0221 and to the left of that number is the corresponding manufacturer's code P203 B&C, which will always prevail. Note that manufacturer codes do not have a "zero" before their codes.
Examples: 1. If M/B extracts codes with their scanner and P0300 (random misfire) is revealed, that will be the code that they work with because there is no corresponding manufacturer code to trump it.
2. Then there are manufacturer codes which are proprietary and have no corresponding generic codes. Therefore they can only be extracted using their software.
Always remember that a generic scanner will only put you in the general vicinity of the problem, but it is up to the individual to decipher the information. Because a scanner says code P0221 TPS, that does not mean that the TPS is faulty and must be changed. There are so many variables that come into play that effect the proper operation of components. This is why many members and mechanics alike, become purblind when it comes to code reading, and as in your case, the TPS replacement did not solve the problem.
Hello MsPPH,Reviving this thread since this has started happening to my truck. It stalls sometimes when I come to a complete stop - usually the first one or two stops after I start it up after sitting overnight or all day, and after the engine has started to heat up - in other words, not when it's dead cold nor when it's fully warmed up. It's done that pretty consistently the last three or four days.
Today for the first time, after one of these stalls (and key out/key in restart), the BAS/ESP light came on and it lost power. We had a huge snowstorm Monday and Tuesday and I've been driving on snowpacked/icy roads. I'm wondering if these road conditions could cause this to happen?
Have you checked your shocks ?Hmmn, I did have defrosters and seat heaters on all times it happened.
But........I think it might also have something to do with how rough the roads were -
they were so unevenly cleared that my fillings were getting rattled out. And all the stalls happened right as I bounced to a particularly rough stop.
The ice/snow melted off over the weekend, and it's once again just as cold, but the roads are now dry and smooth.......and both things have stopped happening.
They're fine on normal rough roads (I live on a dirt road). After this storm, the (paved) roads were like driving over the worst potholes you could imagine. Or moon craters.Have you checked your shocks ?
Hmmm...Now you say that it makes me wonder how securely fastened your battery terminal connections are.........I think it might also have something to do with how rough the roads were - they were so unevenly cleared that my fillings were getting rattled out. And all the stalls happened right as I bounced to a particularly rough stop. .....
sounds like i have a similar problem on my ML55. Do you recall if you had any BAS/ESP light or check engine light on when this happened? Also, was your problem that the gas pedal would not respond at all?Hi Guys,
Dont know if you came right, but my 2002 ML55 F/L gave the same problems. Sometimes when my car gets warm and I floor it, it cuts out the engine and the BAS/ESP lights come on...
After taking it for a service a while ago (NOT at Mercedes), explaining the symtoms and testing the car, they figured out my car was running lean.
The reason was beacuse of the vacuum pipe that manages the manifold flaps, that was old and cracked. After they replaced it, I gained about 50 hp and all my troubles was gone.
Hope it helps.
My first time on this site.nearly got killed yesterday on my way to capetown.at a 140kph the brakes unintensionaly locked up and steered the car straight infront of oncoming traffic.by the grace of God i escaped this accident.who can i speak to or to who do i report this.it is really lif threatning.thanks.driving a ML430 2001.
whenever i try to drive the car hard i.e. floor the car, step on the gas hard. and try to accelerate faster
my car stalls and the bas/esp light comes on.
if i restart the car. all is normal and i can drive until i try to drive the car hard.
any idea why this is happening? and how can i fix it.
it is a real safety hazard. especially while merging. plus it is also very embarrassing.