CHeck the funny little tower shapped do hicky at the fuel distributor area. If yours has been altered it might be more obvious if they left teh "security" ball out after it was drille dout to allow adjustment. Most people dont replace it. IF the top of the tower is open and you can put a 5mm hex hey down it, try adjusting it...A LITTLE BIT, say a 1/8 or a little less of a turn counter clock wise I think to make it more lean. DO a lot of searching on the forum before you adjust it an it will save you a lot of heart ache. DO not blindly adjust the setting, you will be sorry.

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Christopher Henkel
1990 190E 2.6 - Arctic white SOLD
1986 190E-16v - Blauswartze
1993 300CE - SOLD
2003 W208 CLK 320 Cabriolet - Magma Red