08 E350 crank no start
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Newbie
Joined: Aug 2025
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08 E350
08 E350 crank no start
I have an 08 E350 I am not getting any fuel at the rails. I have tried to replace the relay and fuse with no luck. I can barely hear the pump cutting on when turning the key to position 2. If I tap the top of the housing plate on passenger side while trying to crank the car I start to get a little fuel at the rails so assuming my pump has gone bad. I searched for a fuel pump assembly to buy but can not find one that replaces both passenger and driver side pumps. Can anyone help me with this?
Super Member
Joined: Oct 2012
Posts: 538
Likes: 89
From: Hollywood, CA
W209, W124
Before buying up parts you may not need, maybe do some more research?
Check for voltage at the pump(s).
And I know we sound like a broken record, but put a scanner on it, make sure there isn’t something else not turning on pumps.
Check for voltage at the pump(s).
And I know we sound like a broken record, but put a scanner on it, make sure there isn’t something else not turning on pumps.
Out Of Control!!
Joined: Apr 2019
Posts: 12,272
Likes: 6,918
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
CONNECTOR EYE INSPECTION
the fuel pump is known to burn up its harness power connections - Visually inspect connector for oxidation at the tank top.
Good pump and clean filter help prevent higher currents.
Good pump and clean filter help prevent higher currents.
Last edited by CaliBenzDriver; Aug 28, 2025 at 03:51 PM.
