07 E350 PZEV Woes (new tank didn’t fix issue)
Thread Starter
Junior Member
Joined: May 2008
Posts: 21
Likes: 0
From: Bay Area, CA
2007 E350
07 E350 PZEV Woes (new tank didn’t fix issue)
Hi all, having a unique problem starting my car.
My car is a PZEV and was having issues starting the car. Before replacing the tank, it would crank and eventually start after a few cycles.
- replaced crankshaft sensor - no change
- got fuel tank replaced - I’m over on date on the 15 year/150k extension. MBUSA wouldn’t help and no managers will call me back.
- car is starting better most of the time. However if I turn it off and remove the key, go to start it 20 min later it will start-ish and then die within 5 seconds.
- replaced fuel pump relay
- getting over 12v on the sending unit wiring, just waiting for it to happen again to see about voltage when it dies.
Am I missing anything else?
My car is a PZEV and was having issues starting the car. Before replacing the tank, it would crank and eventually start after a few cycles.
- replaced crankshaft sensor - no change
- got fuel tank replaced - I’m over on date on the 15 year/150k extension. MBUSA wouldn’t help and no managers will call me back.
- car is starting better most of the time. However if I turn it off and remove the key, go to start it 20 min later it will start-ish and then die within 5 seconds.
- replaced fuel pump relay
- getting over 12v on the sending unit wiring, just waiting for it to happen again to see about voltage when it dies.
Am I missing anything else?
Junior Member
Joined: Mar 2023
Posts: 29
Likes: 3
2008 W211 E300 4Matic
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Joined: May 2021
Posts: 2,527
Likes: 2,044
From: US
2008 E350, 2012 ML350, 2014 E350, 2015 ML350
How much fuel in the tank? Below half, or above?
if you take the air box off, and spray the throttle body with some starting fluid, will it start? If it does, it is a fuel delivery issue; otherwise, it is am ignition issue.
But, the first advice is always scan for codes with MB specific scanner, check fuel levels with scanner not the cluster
if you take the air box off, and spray the throttle body with some starting fluid, will it start? If it does, it is a fuel delivery issue; otherwise, it is am ignition issue.
But, the first advice is always scan for codes with MB specific scanner, check fuel levels with scanner not the cluster
Thread Starter
Junior Member
Joined: May 2008
Posts: 21
Likes: 0
From: Bay Area, CA
2007 E350
Thread Starter
Junior Member
Joined: May 2008
Posts: 21
Likes: 0
From: Bay Area, CA
2007 E350
How much fuel in the tank? Below half, or above?
if you take the air box off, and spray the throttle body with some starting fluid, will it start? If it does, it is a fuel delivery issue; otherwise, it is am ignition issue.
But, the first advice is always scan for codes with MB specific scanner, check fuel levels with scanner not the cluster
if you take the air box off, and spray the throttle body with some starting fluid, will it start? If it does, it is a fuel delivery issue; otherwise, it is am ignition issue.
But, the first advice is always scan for codes with MB specific scanner, check fuel levels with scanner not the cluster
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Joined: Jul 2012
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From: Orbiting the planet
This place is a joke.
This model year is susceptible to engine control unit failure. Next time it cranks and doesn't start, open the hood and tap several times on the engine control unit with a hammer or your fist. That's the part on top of the engine that looks like a George Foreman grill.
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Thread Starter
Junior Member
Joined: May 2008
Posts: 21
Likes: 0
From: Bay Area, CA
2007 E350
This model year is susceptible to engine control unit failure. Next time it cranks and doesn't start, open the hood and tap several times on the engine control unit with a hammer or your fist. That's the part on top of the engine that looks like a George Foreman grill.
