W123, Electrical

On Demand Video

$4.99

W220 Climate Control Overhead Temperature Sensor Troubleshooting - On Demand Video

Fixing a potential problem could be less expensive than you think

Engine

It could be turbo seals but it could also be excessive diesel engine blow-by

Engine

You of course need the right wrenches - but if one or more won't adjust - what then???

$19.95

Every diesel owner should have one of these in the trunk to quickly test glow plug functions

Fuel Delivery

Already done filters, injectors, tuning and still want more power - there is one more thing you could do.

$1.90

Fits all models with the 722.315 and most 722.4 transmissions - see list below

On Demand Video

$14.99

This can help you get your 1977 to 1981 Automatic Climate Control working again.

Transmission

Both problems require removal and it can be a little "tricky"

$2.95

For 1981 to 1985 Turbo Diesel 300D 300TD 300CD and 300SD

PDF

$9.95

For installing green and black modulator on most 1981 to 1993 models.