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Old 11-17-2005, 05:32 PM
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Join Date: Feb 2004
Location: Downtown Los Angeles
Posts: 43
88 300SEL intermittent sputtering when starting off

I'm sure that this has been answered in some form, but a pretty thorough search of the archives has me more confused about where to start to look for the problem.

Yesterday the car started sputtering when I start off from a stop. It starts fine, although its rough for a couple of seconds (has been like that for a while), and then idles smoothly. It is acting like it isn't getting any gas, and then, at about 1500 rpm, it gets through it and acts normally. This doesn't happen every time, about half the time.

If someone can point me to the most likely cause to start with, I'd really appreciate it.

Incidentally, the car hasn't been tuned up in about 9 months, but its only been 2,500 miles since the tune-up. The car now has 200,900 miles on it.

Thanks very much in advance,


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Old 11-18-2005, 12:24 AM
Senior Member
Join Date: Jul 2002
Location: visalia ca
Posts: 368
just too many variables here. whats been checked?
sp plugs? cap and rotor? coil? fuel pressure and volume?

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Old 11-18-2005, 01:50 AM
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Join Date: Jul 2005
Posts: 119
that is right what Mbshop sayed.If you sayed about the tune up was done 2,500 km ago,but what was done at the time?i see you do not drive the car a lot .So first i would do a proper tune up.Plugs air filter (if clean leave it)fuel filter ,and check cap and rotors.And it might be good also to check the resistance of the spark plug cables .Have you checked if the eha is leaking?But usally at that milage what is going on is that the fuel injectors are leaking.When you shut of the car the extra fuel goes into the cylinders and gives to much fuel at once at start up.But if you replkace the injectors do not get the brass once.There spray pattern is verrrrry bad and half of them are screwed ,make sure you use the steel once,awailable from MB.Also a goog idea is to bleed the fuel distibutor when you replaced the injectors or fuel filter.
There is more ,but these are the first things you shoud do or look for.
Another thing i might mention ,but a loooot of the other members dont see it my may,is to rerplace your timing chain and tensioner.So there is another forum in here that everyone disagreas with ne,but they are not the onse repairing the cars afterward ,which is me,they are the one paying the 2g for the jobthese are my my advises and stick to it...Harald

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