Want this question answered?
ECM
idle air control valve (iac) could be dirty or clogged.
Inside the gas tank.
Could be a number of reasons. Visit www.mercedes190.co.uk
Try cleaning the EGR valve.
1991 to 1994, then again in 1996 to 2004.
I doubt it
Pretty sure 1000 LBS....
Inside the fuel tank.
replace the key switch hope this works for you
SAE 10w30 any premium brand.
Check under the dashboard, to the left of the steering column.