Diesel Engine Fluid Leak Problems - A Quick Reference Solutions Guide

Summary list of the most common causes and parts needed to fix them. Part 5 of 5

The common problem is listed and the reference word or words for the part to fix it are listed as a solution.Using our website search box for both tech help and products, enter the words of the solution. This will take you directly to the resources we offer to help you fix the problem. We also list the difficulty. Level 1 indicates a beginner DIY job. Level 3 would indicate an intermediate DIY repair. Level 5 means you need professional mechanical experience to complete the job successfully.

Problem & Solution

Common among these chassis:

W110 W111 W112 Sedan
W115
W116
W123
W124
W126
W140
W201

USE OUR SEARCH BOX TO QUICKLY LOCATE YOUR SOLUTION: Enter key words listed below

 

1. Common Fluid Leak Problems: Engine leaks oil: from air cleaner

Solution: air cleaner anti rattle kit

Difficulty Level:  1

2. Common Fluid Leak Problems: Engine leaks oil: from oil filler cap

Solution: Filler cap gasket

Difficulty Level:  1

3. Common Fluid Leak Problems:​ Engine leaks oil: from valve cover

Solution:Valve cover gasket

Difficulty Level: 2

4. Common Fluid Leak Problems: Engine leaks oil: from breather tube

Solution: Breather tube

Difficulty Level: 1

5. Common Fluid Leak Problems: Engine leaks oil: from turbo drain nipple

Solution: Anti rattle kit

Difficulty Level: 2

6. Common Fluid Leak Problems: Engine leaks oil: from oil pressure line

Solution: Oil pressure line

Difficulty Level: 2

7. Common Fluid Leak Problems:  Engine leaks oil: from oil pressure gauge

Solution: Oil pressure gauge

Difficulty Level: 2

8. Common Fluid Leak Problems:  Engine leaks oil: from vacuum pump housing

Solution: Diesel gasket kit

Difficulty Level: 2

9. Common Fluid Leak Problems:  Engine leaks oil: Injection pump to block gasket

Solution: Diesel gasket kit

Difficulty Level:  3

10. Common Fluid Leak Problems:  Engine leaks oil: from front crank area

Solution: Front crank seal kit

Difficulty Level:  4

11. Common Fluid Leak Problems: Engine leaks oil: from rear crank seal 616 617

Solution: Remove engine to replace!

Difficulty Level: 5

12. Common Fluid Leak Problems: Engine leaks oil: from rear crank seal 60x engines

Solution: Rear cranks seal kit

Difficulty Level: 4

13. Common Fluid Leak Problems:  Engine leaks oil: from timing chain tensioner

Solution: Diesel gasket kit

Difficulty Level: 2

14. Common Fluid Leak Problems: Engine leaks oil: from oil pan

Solution: Oil pan gasket

Difficulty Level: 2

15. Common Fluid Leak Problems: Engine leaks oil: from oil filter housing at block

Solution: Oil filter housing gasket

Difficulty Level: 3

16. Common Fluid Leak Problems: Engine leaks oil: turbo charger oil feed line

Solution: Diesel gasket set

Difficulty Level: 2

17. Common Fluid Leak Problems: Engine leaks oil: from oil cooler lines

Solution: Oil cooler line / special tool

Difficulty Level:  3

18. Common Fluid Leak Problems: Engine leaks oil: from oil cooler

Solution: Oil cooler

Difficulty Level:  2

19. Common Fluid Leak Problems:  Engine leaks fuel: from fuel cap

Solution: Fuel cap seal

Difficulty Level: 1

20. Common Fluid Leak Problems:  Engine leaks fuel: from fuel tank

Solution: Fuel tank

Difficulty Level: 2

21. Common Fluid Leak Problems:  Engine leaks fuel: from fuel tank hoses

Solution: Fuel line replacement kit

Difficulty Level: 2

22. Common Fluid Leak Problems: Engine leaks fuel: from fuel tank outlet screen

Solution: Fuel tank screen

Difficulty Level: 2

23. Common Fluid Leak Problems: Engine leaks fuel: from engine hoses

Solution: Fuel hose

Difficulty Level:  1

24. Common Fluid Leak Problems: Engine leaks fuel: from leaking hand pump

Solution: Primer pump

Difficulty Level:  1

25. Common Fluid Leak Problems:  Engine leaks fuel: from main fuel filter

Solution: Fuel filter kit

Difficulty Level:  1

26. Common Fluid Leak Problems:  Engine leaks fuel: from fuel injectors

Solution: Fuel Injectors

Difficulty Level: 2

27. Common Fluid Leak Problems:  Engine leaks fuel: from injector return hoses

Solution: Fuel injector return hose

Difficulty Level: 1

28. Common Fluid Leak Problems: Engine leaks fuel: from injector hard lines

Solution: Fuel injector hard lines

Difficulty Level: 1

29. Common Fluid Leak Problems:  Engine leaks coolant: from water pump

Solution: Water pump

Difficulty Level:  2

30. Common Fluid Leak Problems:  Engine leaks coolant: from water pump housing

Solution: Diesel gasket kit

Difficulty Level: 2

31. Common Fluid Leak Problems:  Engine leaks coolant: from coolant short hose

Solution: Diesel short hose kit

Difficulty Level: 2

32. Common Fluid Leak Problems: Engine leaks coolant: from coolant hoses

Solution: Coolant hose

Difficulty Level:  1

33. Common Fluid Leak Problems: Engine leaks coolant: from radiator cap

Solution: Radiator cap

Difficulty Level:  1

34. Common Fluid Leak Problems:  Engine leaks coolant: from radiator neck crack

Solution: Radiator / or neck kit

Difficulty Level:  2

35. Common Fluid Leak Problems: Engine leaks coolant: from radiator overflow tank

Solution: Radiator overflow tank

Difficulty Level:  1

36. Common Fluid Leak Problems: Engine leaks coolant: from heater core

Solution: Heater core

Difficulty Level: 4

37. Common Fluid Leak Problems:  Engine leaks coolant: from freeze plugs

Solution: Freeze plug

Difficulty Level: 2

38. Common Fluid Leak Problems:  Engine leaks coolant: from head gasket

Solution: Head gasket

Difficulty Level:  4

39. Common Fluid Leak Problems: Engine leaks fluid: from transmission pan

Solution: Transmission service kit

Difficulty Level:   2

40. Common Fluid Leak Problems:  Engine leaks fluid: from transmission cooler line

Solution:Transmission cooler lines

Difficulty Level:  2

41. Common Fluid Leak Problems: Engine leaks fluid: from transmission seals

Solution:Transmission seal replacement kit

Difficulty Level: 5

42. Common Fluid Leak Problems:  Engine leaks fluid: from rear axle boots

Solution: Rear axle boot kit

Difficulty Level: 4

43. Common Fluid Leak Problems:  Engine leaks fluid: from brake calipers

Solution: Brake calipers

Difficulty Level: 2

44. Common Fluid Leak Problems:   Engine leaks fluid: from brake hoses

Solution: Brake hoses

Difficulty Level: 2

45. Common Fluid Leak Problems:  Engine leaks fluid: from brake master cylinder

Solution: Brake master cylinder

Difficulty Level:  2

46. Common Fluid Leak Problems: Engine leaks fluid: from power steering hoses

Solution: Power steering hoses

Difficulty Level: 1

47. Common Fluid Leak Problems: Engine leaks fluid: from power steering pump

Solution: Power steering pump

Difficulty Level:  2

48. Common Fluid Leak Problems: Engine leaks fluid: from steering box seals

Solution: Steering box

Difficulty Level:  3

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Note: Additional resource guides are listed to the right.