On the base of the carb viewed from the front is the two idle mixture screws, in the middle of the base between idle mixture screws is a largers adjustment screw. What do you adjust with this screw?

I'll check my manual when I get home, if I don't report back PM me.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

You must have a later european version. US models didn't have that.

I am pretty sure it is a air screw for engine speed, sort of a throttle bypass. Could be wrong though.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician

Thanx stevebfl, could you explain what the function of the airscrew would be. How are one suppose to set it?

There's something like 11 adjustments on that carb. Rather than pulling at straws, take the manual in hand and spend a few hours walking through all the steps.

Short-cuts and mercedes tend to not appear together in any sentance that contains a happy ending, especially when a solex 4A1 is thrown in the mix.

The shop manual on CD is about 30$ from mercedes at 1-800-for-merc. It contains dozens of pages on this carb and all its varients over the motor's 10+ year run.

-CTH

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- cth350@gmail.com
http://www.111lakeside.com/