S420 spluttering, misfiring, brown exhaust, and HOT
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1995 S420
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It has had a recent tune up with new air filters, spark plugs, new battery, fuel filter, etc. Any ideas? I don't think it will make it to a mechanic if I try to get it on the road. I may have to tow it. Please help!!! This car is relatively new, with relatively few miles. Always properly dealership maintained, always garaged. The A/C is also KAPUT!!! As much as I love it, this will be my first and final Benz. Thanks in advance.
#2
first thing i would replace is the temperature sensor on the front of the engine between the V's - there are severla types, and on some cars several sensors there..
on my 96/97 420 the sensor was 20 UKP = 30? USD
edit - yours is part number 008 542 45 17 = 27 USD and is the smaller one at the left of the bigger one at the front of the engine.
on my 96/97 420 the sensor was 20 UKP = 30? USD
edit - yours is part number 008 542 45 17 = 27 USD and is the smaller one at the left of the bigger one at the front of the engine.
Last edited by guydewdney; 10-07-2004 at 06:52 PM.
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1995 S420
Thanks for your reply and the time you took to get the PN. I shall look into it.
Originally Posted by guydewdney
first thing i would replace is the temperature sensor on the front of the engine between the V's - there are severla types, and on some cars several sensors there..
on my 96/97 420 the sensor was 20 UKP = 30? USD
edit - yours is part number 008 542 45 17 = 27 USD and is the smaller one at the left of the bigger one at the front of the engine.
on my 96/97 420 the sensor was 20 UKP = 30? USD
edit - yours is part number 008 542 45 17 = 27 USD and is the smaller one at the left of the bigger one at the front of the engine.
#4
same problem
The same problem happened to me this morning. Car ran fine after start up from cold....got on the interstate...took my same exit...and as I came to the stop light, I noticed the brakes were harder to press...then I pulled into my employee parking lot and got the erratic idleing...up and down...I was thinking I must have nocked a vaccum hose loose... went out at lunch and I have no idea what vaccum hoses go to what...anyone have a diagram? I have used the search to no avail...
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2018 GLS63 AMG
It sounds like the Electronic Throttle Actuator. I had a similar problem with my S500 coupe and it was not cheap to fix
(I sold the car after I fixed it). It seems to be a common problem with the earlier V8 w140s.
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