W110 W111 W112 Sedan, BENZ AID - COMMON QUESTIONS AND ANSWERS

timing gear breaks on 420 sel

Hi I am brand new to the forum. My name is Lewis in Nor Cal, I have owned a 1990 420 sel for 3400 miles now. IT has 200120 miles on it, 1 owner and is in perfect shape. Just did new rotors all around belts and oil change. I went to start it on 09/15 and I heard a big bang. opened the hood and found something had made a 2/3" hole in the drivers side vale cover right on top of the timming chain. the motor did not start during this time and has not since. I am going to do a compression check to see if any valves hit pistons etc.

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Body and Interior Specific Aid

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Chassis Model Number

W126

'83 240D Power Steering "Slop"

I've got a '83 240D with Power Steering. Riding down the highway, the steering has quit a bit of play. I'd estimate I can turn the wheel about an inch (5-10 degrees) without any noticeable effect on the wheels. With the car parked and off, if I grab the input shaft to the steering gear box I can turn is about 5-10 degrees before I see any noticeable movement underneath at the control arm. SO I believe most of the "slop" I am experiencing is coming from the gear box and not further down (tie-rods, bushings, etc.). I noticed in the shop manual that there is an adjustment procedure for the gear box. It looks simple enough but shows torque curves through the steering handle travel.

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Body and Interior Specific Aid

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Chassis Model Number

W123

Puddle of diesel under 74' 240d

So lately Ive been noticing a small puddle of diesel under my 240 when it has been parked for an extended period of time. I haven't worked recently and am noticing that puddle getting bigger every day. Where could it be leaking diesel fuel??? Near the injecter pump or is it a cracked fuel line or what? Also, I do know that the engine in the vehicle is not original and that it was recently replaced so could this be the problem any help would be absolutely fantastic. Thanks!

Chassis Model Number

W115

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Body and Interior Specific Aid

Better ride for 83 380 SL

Hi, My 83 380 SL does not ride well. I replaced the shocks and it seems like it needs a whole lot more as it thumps over rough roads.. What DIY things can I do make my car ride better? I read in this forum that replacing the front subframe bushing is an easy fix and greatly improves ride and steering. Any suggestions?

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Chassis Model Number

R107

240D Starter Issues

I've got a 1977 240D with a starter that won't turn (or do much of anything) when the key is turned. It will, however, start right up when I bridge the two screw terminals on the smaller cylinder on the starter assembly (solenoid?). I'm not too clear how exactly the starter motor works, so I'm looking for some help on what to look at/for. More, possibly relevant, info: Drove about 150 miles through 100+ degree heat. When I stopped for lunch, car exhibited above symptoms. Banged on large starter cylinder, car started with minimal fuss. After sitting in a driveway overnight and most of the next day, starter wouldn't turn at all (or even "click"). My friend suggested bridging the two screw terminals on the solenoid with a screw driver, and this started the engine right up.

Chassis Model Number

W123

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Body and Interior Specific Aid

Turn signal problem-81 300D

I have a 1981 300D. On a recent road trip I had to run my hazards for an extended period of time while in the mountains (why I had to have them on is another story: throttle pivot mount failure - argh!). Anyway, at some point, the flashers just quit. Now I have no turn signals. I checked the fuses, and they're fine; I also checked the light bulbs - all are okay. Could the hazard have blown out a relay somewhere? If so, where, and how would I know if that's the problem? Any other ideas? Thanks! Mike

Chassis Model Number

W123

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Diesel Engine Specific Aid

What's the firewall throttle bushing called, where do I get one?

My '81 300TD TurboDiesel wagon has some kind of throttle bushing (rubbery filled metalic thing that screws onto the firewall and holds the throttle linkage from firewall to the "stop engine" lever on valve cover) on the firewall that seems to be deteriorating and the acelerator is becoming very mushy. I'm sure I'm only getting about 1/3 of the actual throttle so I'd like to replace this. I don't know what to call it, let alone where to get it. If anyone has any knowledge as to what this is called, I'd appreciate it. Thanks so much!

Chassis Model Number

W123

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Diesel Engine Specific Aid

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