W123, Suspension & Driveline

240D Standard Transmission Shifting Problem

Have a nice 1982 240D four-speed, standard sransmission (floor shifter) with about 140K miles on it. Recently experienced big problem with shifting from one gear to another. Thought it was a bad shifter and secured a replacement assembly unit which has been installed this past week. Have replaced all external bushings (except for white plastic bushing inside actual shifter unit)and everything appears to be tight...not loose. Can replace internal shifter box bushing but I don't think this is the problem.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

300D dash lights fail after radio install

My old Becker radio in the 300d gave up, so I replaced it with something new. Everything seems fine except now it seems I have lost dash lights? Any advice would be appreciated.

Was having hard starts in the cold last week, the glow plug light went out. Ordered the clean=out tool and 5 new glow plugs. Job went smoothly with your instructions. Starts great again, Thanks!

Jonathan

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

617 Turbo diesel Low Power at low RPM

I have a 1982 W123 with about 240,000 miles. It runs great at normal highway speeds.
The problem(s) are first at low RPM it takes a lot to get the car going, it can be floored and barely start to move. The other day my wife parked on a hill and when leaving it took a long time for her to move. (transmission is good, just replaced) Power is excellent when rev's are up, it will actually chirp the tires when shifting gears.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

Fixing Leaks (oil and coolant)1981 300cd

My 1981 300CD has some leaking issues. I have traced the coolant leak to the fact that the radiator has bulged along the upper edge and is leaking fluid under pressure from the joint between the tank and radiator.
Are these repairable? What else uses the same radiator or one close enough that I can cross reference to try to find a good used or inexpensive new rad?

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

Mercedes rear brakes locking up

Month ago My rear brakes went on fire! They told me since the pads were sticked to the disc I need to replace the calipers. Well I did it. I installed brand new calipers change the brake fluid and went driving. 2 miles later I was on fire again. Now they told me it is the cylinder or the booster, but I don't know what should I do!. I need help. please.

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

1983 300D Just installed Optima 34R

A note on putting an Optima battery into a Mercedes. If you can dig up an Optima 34R instead of the standard 34, the posts will be in the correct position for the Mercedes cables. The battery comes with a couple of adapters. If you drill out the driver's side battery clamp stud and put a long bolt through the new hole, you can use the type 78 (looks like a 'C') adapter hold the battery in. You will need to add an insulator to the '+' cable as the OEM setup uses a cover on the battery.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

heater fan fuse 1985 300 TD

I have and run for the last ten years a 1985 300TD wagon, about five years ago I replaced the heater fan motor. Now the fuse seems to be blowing frequently. Sometimes I can get it to last a few days, then only a half hour or so. I did notice in the fuse panel someone before me, conveniently painted a little red dot by the heater fan fuse. The fuse in there is a blue one and that's what I've been replacing it with.

Thanks,
Jonathan

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

82' 300d still not charging

My 82'300d was not charging so I replaced the battery removed the alternator had it tested and it checked fine. The tension nut was missing and the bolt was gound down from rubbing on the pulley so I replaced the bracket, bolt, nut and installed new belts. It started right up and everything seemed to be fine. That was 10 days ago and now it's not charging again. Any suggestions? I'm stumped, any help will be greatly appreciated.

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

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