Any how-to guides out there for changing out fuel lines, etc.

[VadGTI]

Just looking for a step-by-step for my '88 M3, since I discovered this over the weekend:



Just bought a new fuel filter, 3 meters of fuel hose, clamps and 3 random pre-bent hoses I thought I needed from bmwmercedesparts.com. Now, I need to figure out the steps to getting to all of the lines. Tried RealOEM but I can't quite figure out everything.

This should be the same for all E30s, M3 or not, correct?

[dnguyen1963]

Just take out the old line one piece at a time and cut the new line accordingly. You might need a razor to slice the ends to take the old lines out. Remember to release the pressure first (run the car with the fuel pump fuse removed). Do one section at a time and you will be fine. Work in a well ventilated area. Most importantly, disconnect the neg cable BEFORE you do anything.

[VadGTI]

Just take out the old line one piece at a time and cut the new line accordingly. You might need a razor to slice the ends to take the old lines out. Remember to release the pressure first (run the car with the fuel pump fuse removed). Do one section at a time and you will be fine. Work in a well ventilated area. Most importantly, disconnect the neg cable BEFORE you do anything.

Which is the fuel pump fuse?

[Todd Black 88]

And make sure to use fuel injected rated hose, not carb rated fuel hose.

[VadGTI]

Here's what I ordered:

Items Ordered:
Item: No Part Name Available (this is 3 meters of OEM 8x13 fuel hose)
Price: $15.86
Tax: $0.00
Qty: 3
Total: $47.58

Item: HOSE - this is one of the hoses near the pump or filter on E30s
Price: $8.49
Tax: $0.00
Qty: 1
Total: $8.49

Item: HOSE - another hose near the pump or filter on E30s
Price: $11.32
Tax: $0.00
Qty: 1
Total: $11.32

Item: CLAMP - round-edge clamps
Price: $0.82
Tax: $0.00
Qty: 12
Total: $9.84

Items Ordered:
Item: FILTER - fuel filter
Price: $28.93
Tax: $0.00
Qty: 1
Total: $28.93


Items Ordered:
Item: 7-M3 HOSE - 3ft long fuel hose that runs from the tank on M3s
Price: $10.31
Tax: $0.00
Qty: 1
Total: $10.31

Anything I'm missing?

[dnguyen1963]

Which is the fuel pump fuse?

Fuse 11 controls the fuel pump. It is also best to unplug the fuel pump relay.