Replace Pre-Fuel Filter
From Dieselbenz.info Wiki
|Part Number(s):||0014777901 or Bosch 74002|
|Best Place to buy:||Find a clear one on ebay|
|Cost to Have it done in a shop:||too much|
|How long it may take:||5 minutes|
|Frequency:||whenever it's dirty|
|Special tools needed:||none|
This is cake. Just unscrew, fill up full of diesel fuel (Optional) and replace.
You could replace the main fuel filter at the same time as well.
Be sure to Bleed the Fuel lines after you are done!