BENZ AID - COMMON QUESTIONS AND ANSWERS

1984 300D oil under rear end

Hi all, my 1984 with 179,000 miles clocked had a litte wet spot under her rear-end today after we went for a cruise. I got underneath her and there was evidence of oil being slung around on the underbody. It was concentrated on the passenger side of the differential but hard to pinpoint. It didn't look like either of rubber boots were cracked so I am leaning towards the axle seal on the differential. Does it sound like I am going in the right direction? Looks like one of those cheap-part-lotta-labor type jobs. Thanks, Mike

Chassis Model Number

W123

Forums

Transmission / Suspension Specific Aid

Air in lines 1981, 300sd

Car wont start. New strainer, clean tank, new bosch primer pump and assembly, new plasic lines, new feul filters, new glow plugs and all are working, did diesel purge (2 cans). Car runs on diesel purge setup. I'm lost so I took car to foreign car mech (local benz expert) and he tried an electric pump and....ran for one day then died again. He's saying air is getting in lines...but we both have no idea...please help!!!

Chassis Model Number

W126

Forums

Diesel Engine Specific Aid

diesel won't start 1978 300cd

I'm a diesel novice, but have had lots of old gasoline fueled cars, from 1930's - 1960's. Have had my 300cd for about a year and driven about 7,000 miles. Adjusted 300cd's valves last week (all were a little tight, but ok and was last done about 9,000 miles ago according to records). Replaced glow plugs last year. Had in-tank fuel screen cleaned last year. Now about 1/2 way through a tank of fuel that's about a week old. Started this winter even at 20 degree temp all day. Car now in heated garage. Has been starting and running ok. Driven several times previous day without a glitch.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

1978 300SD Oil Leaks

I've been running through a lot of oil lately so I had my engine cleaned thoroughly and ran it at idle for 30 mins. I noticed that oil was leaking from the grate at the bottom of the transmission, but nowhere else immediately noticeable. I suspect that this is the dreaded rear crank leak that requires engine removal, but would appreciate confirmation before I go out and solicit estimates. Am I correct?

Chassis Model Number

W116

Forums

Diesel Engine Specific Aid

overheating on my 1980 300 sd

I have replaced the thermostat,aux water pump, water pump, all hoses,had the radiator rodded out by a radiator repair shop, blower motor replaced and I am still just short of 100 degrees on the cars gauge backed up by an infrared gun. I have checked and my major problem was the radiator as the bottom was cold and the top was running hot. After all this I now have hot all over readings. The thermostat was an 80 degree one and was put in the right way. I am getting heat thru the a/c so I assume there are no bubbles in the system. The top of the radiator reads 100 degrees with thr IR gun.

Chassis Model Number

W116

Forums

Diesel Engine Specific Aid

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