Mercedes W123 Manual Gearbox Troubleshooting

Mercedes-benz W123 280E 1976-1985 Service Repair Manual. Procedures, Wiring Diagrams, Gearbox. Benz 240D 1976-1985 service repair manual MERCEDES BENZ.

Hello, I though that I should put together in a simple manner all I found out in the process to fix my flaring tranny. I hope this information is useful. Please add more details, pictures, videos, etc Its kinda pointless to mess with the tranny if the engine is not working properly. And Install The Patch For Disney Magic Artist Studio. Although, usually the problems come from vacuum leaks.

Assuming your engine is running Ok, then just go hunt for vacuum gremlins. Engine: -ATF level. -Change all Filters. -Fuel hose leaks.

Upgrade Hand primer pump for a new bosch. -Chech tank screen. -Valve Adjustment. Check the Timing chain. -Compression Test.

-Clean Injection System with Diesel Purge. And Or upgrade to Monarch Nozzles. -Timing, Injection Pump - In the case of a Turbo diesel, check your turbo for proper functionality and clean it. Use the ALDA screw to adjust for a richer air mix.

Clean the 'banjo' bolt. -Oil consumption/loss.

-Linkages, are they working right? Moving smoothly? -Glow plugs, if the engine is starting rough/ smoking and gets better at Op.Temp. When changing them you may want to get rid of the carbon buid up using a 'reamer': - Tranny additives. This is what Benzworld think: ============================================= Vacuum: - Simplify the vacuum routing. Leave one of the vac lines from the main hose going directly to the VCV with a 'Y' connector shared with the black line that goes directly to the Modulator.

Connect your MV to 'other users' one by one to test for leaks again. Then start connecting one by one 'other users' to see if there is a leak in one of such systems. Go for a test ride with each one of them. Usually there is a leak in the Door Locks or Climate Control, if that's the case, bypass it and deal with that later. EGR is not needed, you should bypass it. - Replace all rubber connectors that look aged or brittle.

Its cheap, just do it all. Don't forget the most important one at the Modulator. - Check Modulator vacuum line is holding pressure. Usually black, goes from the top of VCV to under the car and connects into the Modulator.