W123, MPG Products to Increase Mileage

1984 300D cruise control not consistant

Hi all and Happy New Year. I have read a few questions about cruise control problems and always try to learn from them. The problem with my Benz is a little different from what I am reading. My CC works but is not consistant. Sometimes when I set it right around 60 mph and around 3000 rpm it holds pretty smooth and constant. But unless I set it at just the right speed it operates kind of jerky. It will surge for a second and then back off as it compensates for hills and dips on the highway. It just isn't constant.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

Euro 230ce maintenance parts and repair

Hello everyone! My first post and I want say that, I am enthused and on my way to Mercedes ownership, with some help.

I've been looking at purchasing a 1985 230ce with 101K (asking $5K) on the meter for about 6 months. I think they have the coolest classic look. It's not in the best shape but she runs strong and steady.

Would someone give me an opinion(s) on wheather or not this vehicle is known to be reliable and can I DIY the maintenance and repairs. Parts!!! The 230ce never pops up on any the domestic online car parts sites.

Chassis Model Number

W123

Forums

Gas Engine Specific Aid

1982 300D Turbo- Cruise Control Issues

Hi Kent,

My cruise control has some issues. I can move the arm in the "set" position, and it will accelerate, but won't set the cruise control. In other words, when I push the arm, the gas pedal goes down and the car speeds up rapidly, but won't stay at any set speed. Easy fix? Complicated fix? Expensive fix?

Hope you had a wonderful Christmas and I wish you a Happy New Year!

Justin and I will be in Bellingham Jan 14-17 and will swing in to say Hello.

Brook

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

Excessive Oil Consumption 1981 300D

This is my third Merecedes, the first 2 had 200K+ at time of purchase and i ran the cars until the body was literally falling off on one and the suspension fell apart on the other. Both still had sound engines but everything else was worn out. My latest purchase has 162K miles, everything appears clean inside and out, body good shape, feels solid going down the road, etc. One problem : uses a quart of oil every 200 miles when going at interstate speeds. Considering the others engines had so many miles and still ran well i have a hard time giving up on this one.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

1984 300D Diesel Purge

Hi all at Mersedessource and Happy Holidays to you. I just received the diesel purge you sent me just in time for Christmas and I am dying to try it. I only have one question. Kent's instructions are very explicit but being retired from the training and education field people sometimes interpret differently no matter how precise the instructions. That said, my question is this. It appears that I will be feeding and returning the cleaner from the same bottle.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

1977 280E Firing Miss/Fast Idle When Hot

My 1977 280E seems to have a miss in it when it's hot. It's got new gas, new plugs and plug wires. Has Electronic Ignition. Fires up pretty easily but idles fast until it's put into gear, emmits a lot of smelly smoke (white/grey). Engine seems to stumble more when it's accelerated. Car sat for a 2 years before I got it. Could this be something with the vacuum system? Is there something that controls the idle speed as engine warms up and the engine timing that might have a leak or rotted off?

Chassis Model Number

W123

Forums

Gas Engine Specific Aid

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