W210: Engine stall when engine cold
Local independent service tech tried a new MAS, didn't help. No error codes. He thought it might be the throttle actuator, but that is a very expensive part - $1K or so for a rebuilt. And it's not something you can "try" and take off if it doesn't fix. He recommended I take it to the dealer and have them run diagnostics with their system, which apparently can gather more info than he can. I suppose this means they can tell if it's the TA or not. He thought a diagnostic charge at the dealer would run around $100.
Any counsel?
I heard something about this throttle control valve and these symptoms in a w130 S320, you can try a used one from a wrecking yard http://www.car-part.com or ebay or a rebuilt is about 680 if you look around. Just make sure this is the true issue.
I have the Trans. rebuilt do to other problems before the stalliung started and I have recently replace the trans. and torque converter because it was under warranty and Transmission shop said it was transmission related. Seems not to be now.
I have also replaced:
IAC
MAP
Coolant Sensor.
Crank sensor
Plugs and wires
fuel filter.
vacuum lines
And the EGR was replaced before the stalling started. > not sure if it is related to this.
Battery
I am not getting any Engine light or fault codes.
Any Ideas? I need some help!
Driving us nuts. Local MB dealer and independent shop can't figure it out. HELP before I put a match to it!
The Best of Mercedes & AMG
Thanks!
It is my wifes car and I don't want her to get stranded. I replaced the CPS and Maf sensors. I hate replacing good parts.
Neither one helped. It only happens on a cold start up. I turn the key she starts right up then shuts right off not even putting it in gear. It happened two times in a row one day. I here a steady humming noise and I am suspecting its the fuel pump. I just bought this car from a used car dealer and am very sorry I did. My wife totaled her E320 1999 that we bought from a private owner and we never had a lick of trouble except for normal maintenence items. We've had this car a total of three weeks and had to replace:1.Front and Rear axle flex Joints
2.Transmission mount
3.Fuel filter
4.Front wheel bearings
5.One tie rod (bent)
6.4 new tires
$2000.00
Do it yourself Items
1.NEW Bosch MAF sensor 175.00 Part (CODES) P0170 & P0173 Cleared codes OK
2.New VEMO CPS sensor (Didn't solve stalling problem)
3.Mobil 1 0-40 Oil change with filter (Old filter looked like original filter) Should have taken pictures
4.Cabin filters(Looked like originals)
Any help would be appreciated.

€2000,00...
In the mean time my supercharger pulley has gone bust so another €1500,00 gone...
Sigh...
Anyone know about 210 torque converters? Are they lock up TC's? Are tey expensive and a nightmare to replace? Any experience with solenoids?
Diagnosed by MB Dealer as a faulty MAF, replaced no change, I lived with it for a few months no real plans to fix it as it wasn't to much of a inconvenience to be honest. I am a regular on the UK forums, and one of the things they recommended was to have the Gearbox oil and filter changed, and with the high rate of failures of the standard C43 GB I thought I would get it done they drained and emptied my TC of fluid replaced the filter. Well within a week the car didn't stall from cold though the revs still dropped quite a bit when put into drive. This improved over the next few weeks, and was ok for about 15k miles, then it returned to stalling.
I eventually replaced the TC and it instantly solved the stalling, it was explained to me that the TC is a pump, and if worn cant produce enough pressure to disconnect the drive of the gearbox, this is made worse when the fluid is cold as it is thicker.
Not sure why the GB Oil and filter change stopped it for a while, possibly purely down to dirty fluid, but either way TC replacement sorted it for me.
Diagnosed by MB Dealer as a faulty MAF, replaced no change, I lived with it for a few months no real plans to fix it as it wasn't to much of a inconvenience to be honest. I am a regular on the UK forums, and one of the things they recommended was to have the Gearbox oil and filter changed, and with the high rate of failures of the standard C43 GB I thought I would get it done they drained and emptied my TC of fluid replaced the filter. Well within a week the car didn't stall from cold though the revs still dropped quite a bit when put into drive. This improved over the next few weeks, and was ok for about 15k miles, then it returned to stalling.
I eventually replaced the TC and it instantly solved the stalling, it was explained to me that the TC is a pump, and if worn cant produce enough pressure to disconnect the drive of the gearbox, this is made worse when the fluid is cold as it is thicker.
Not sure why the GB Oil and filter change stopped it for a while, possibly purely down to dirty fluid, but either way TC replacement sorted it for me.
I have flushed the tranny, and changed the electrical connector.
Any other suggestions?
I get no codes BTW
Sorry to bring back an old thread.
I am experiencing the same cold stall issues with a C55 AMG (722.6 transmission)
I was wondering if anyone here has found any solutions??
Thanks!
Last edited by Wellington2010; Feb 2, 2020 at 09:44 AM.
Have you searched and read thru the many other threads on this similar topic?
One Example.
edit: another
Last edited by khomer2; Apr 17, 2019 at 09:23 PM. Reason: reading binge....



GL! 😎
