Never thought I'd post in Tech Help... but anyway, we have adopted a W124 500E as a company car (UAE, don't ask...) and I am currently browsing the 500E Board and Peachparts forums for maintenance tips. Compared to the tractor-like W123, the E500 is quite a qualitative and technological leap.

THE PROBLEM
When I start the car and push the gas pedal to get it moving, the car experiences a very unnatural engine fluctuation. Unless I decide to drive in short, abrupt power bursts, I have to wait until the car reaches 40-60ºC for normal operation.

I am attaching a photo of a wire that has been hacked. Not sure what it is, but might be the culprit. Given the regular frequency of fluctuation, it might be a throttle/ETA issue.

What are your thoughts? Thanks in advance!

Attached Thumbnails

 

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[GONE] - 1995 Mercedes E300 Diesel - 130k miles - Smoke Silver (702) over Mushroom leather (265) - Bladder blasting, coast-to-coast work machine.

Well looking at the FSM on startek it looks like you're gonna have fun!

(See this

http://www.startekinfo.com/StarTek/outside/12264/Program/Engine/119/misc/comb2_testing.pdf

or this

http://www.startekinfo.com/StarTek/outside/12264/Program/Engine/119/misc/comb1_testing.pdf)

If I were you I'd start by looking for vacuum leaks / air leaks - seems to be a past time for most people with late 1980s early 1990s Mercedes!

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!