Fuel Delivery
Old Diesel Won't Start After Fuel Starvation or Filter Change
You have to be sure all air is removed from the fuel lines and hoses
W126, Factory Books and Manuals
Engine
Finding a Replacement Turbo Diesel Oil Cooler
Some are no longer available new and the last ones will disappear soon
Electrical
Removing the Buzzer Switch From an Ignition Lock Assembly
Not as easy as it looks and easy to break if you don't know the proper tricks
On Demand Video
$2.99
How to Replace a Mercedes Ignition Key Lock Buzzer Switch - On Demand Video
When replacing a steering lock this little black switch can be a pain to get off
Electrical
Key Not Springing Back From the Start Position
This is a sure sign your electrical switch is going bad
Fuel Delivery
Diesel Engine Timing Device
This important device is not immune to problems as the older diesel engines age!
Engine
How Hard is it to Change the Glow Plugs?
With the right instructions this is a beginner DIY job.
On Demand Video
$4.99
Troubleshooting Problems Related to the Diesel Engine Timing Device - On Demand Video
Covers theory and potential problems of this device on most diesel engines 1969 to 1985
On Demand Video
$3.99
How to Use Small Lithium Polymer Batteries to Work on Your Car - On Demand Video
If you are into RC (radio control) you will already have these batteries and special charger
On Demand Video
$8.99
1978 to 1985 Pencil Glow Plug Replacement Instructions - On Demand Video
For 1978 to 1985 300SD and 1980 to 1985 240D, 300D, 300CD and 300TD