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Give a little back log of what happened. I drove the car to work perfectly fine no issues. Went to drive home from work. Made it about 2 miles went around a turn. Gave the car some gas it bogged down shifted from second to first no RPM and just died on me.
Pulled the codes and oh boy tons of them.. Shesh.. I will attach pictures to thread. Car cranks fine just doesn't fire up. Brand new battery i got it towed so i won't be able to tinker with it until this weekend.
Car is tuned by eurocharged and has been for 4 years. E85 flexfuel kit for two years no issue besides some no start issues now and then maybe twice a year. Forgot what CC injectors im running. 6-- something and LTH.
I don't trust this scanner too well because its says misfire in cylinder 10??
Anything i should look at first or just tow it to mercedes?
Last edited by Black_Mercedes; Oct 2, 2021 at 04:06 PM.
check that your accessory belt is still there...i've ejected my belt more than a few times which caused similar.
I will have to check was too pissed just towed it away. I will check this weekend for sure though. Even if the belt was missing would it still fire up?
Did some research. Fuse 23 was blown. Replaced fuse didn't blow but didn't do anything. Checked voltage at fuel pump no voltage. Checked incoming voltage to this fuel pump control unit perfectly fine 12.4 volts. I tried to jump voltage to fuel pumps I didn't hear a single thing. Out going voltage from fuel pump control unit is zero. So don't know if I need a new control unit and pumps? Anything else I should check?
My guess is that you just need a fuel pump. They do go. Just a guess and others here will know better, but it looks like it was mis-firing on the way out and then died. I think I would start there and the price online doesn't look too bad. What year is your car and how many miles?
My guess is that you just need a fuel pump. They do go. Just a guess and others here will know better, but it looks like it was mis-firing on the way out and then died. I think I would start there and the price online doesn't look too bad. What year is your car and how many miles?
I showed my service adviser this thread he said it's probably the fuel pump. Car is a 2011 c63 with 85k miles. I already replaced fuel sending unit last year because it was leaking. I will probably start with fuel pump.
Awesome fixed the car. I replaced the fuel pump car fired right back up. Fuse 23 has to do with the fuel pump it kept blowing some type of issue within the old fuel pump.
Well that was short lived. Went to start the car this morning died after ten seconds of idling fuse 23 is blown again. Tried replacing it and it blew as soon as I put it in. I wish I could find a diagram for the wiring for that fuse. These are the new codes pulled
Well, that s**ks. So much for my service writer mojo. I'm out of my league here, but when the fuse blows are you key on or key off? Any recent work to your car? A dead short on that circuit out of nowhere doesn't make sense to me, and as you say a wiring diagram would be helpful. At about this level of problems, I'm having it dragged to the shop.
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