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C55 amg Crank no start

Old Oct 1, 2024 | 08:23 PM
  #1  
Amr0_'s Avatar
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C55 amg Crank no start

Here's the situation at hand.
  • Both Sending unit and Fuel pump replaced
  • Brand new fuel pump relay
  • Brand new rear SAM
  • Battery checked
  • CPS on hand but not replaced

The car currently cranks but just can't start no matter what. I hear the rear Sam clicking and everything, but the car just won't start. What would be a next step to check?
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Old Oct 2, 2024 | 12:08 AM
  #2  
S_Holford's Avatar
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2003 S55 AMG, 2005 C320 Coupe, 2020 Jeep Gladiator Mojave
Originally Posted by Amr0_
Here's the situation at hand.
  • Both Sending unit and Fuel pump replaced
  • Brand new fuel pump relay
  • Brand new rear SAM
  • Battery checked
  • CPS on hand but not replaced

The car currently cranks but just can't start no matter what. I hear the rear Sam clicking and everything, but the car just won't start. What would be a next step to check?
The crank sensor would've been the first thing I replaced since it's cheap and relatively easy to change. I usually replace them as cheap insurance on any M113 or M112 whenever I buy them because they do fail. Have you tried scanning for any codes yet?

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Old Oct 2, 2024 | 01:58 AM
  #3  
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Originally Posted by S_Holford
The crank sensor would've been the first thing I replaced since it's cheap and relatively easy to change. I usually replace them as cheap insurance on any M113 or M112 whenever I buy them because they do fail. Have you tried scanning for any codes yet?
I had codes from the fuel pump but once replaced there are 0 codes. I'll replace the cps and see
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Old Oct 3, 2024 | 07:38 AM
  #4  
Killa' Benz's Avatar
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E230 W210
Update? My C230K is also cranking but not starting. Then somedays it will start fine
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Old Oct 5, 2024 | 01:46 AM
  #5  
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C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
Codes from the fuel pump? I had none. One day it just died. Amazingly I was able to
nurse it off the freeway and into my work parking lot several MILES away with just a few PSI of pressure.
So far not replaced the CPS but I keep a spare in the glove box.
Plus a complete toolkit, and a spare coil pack.
As I understand,CPS doesn't throw a code.
Cam sensor will though.
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Old Oct 5, 2024 | 11:57 AM
  #6  
S_Holford's Avatar
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From: Las Vegas, NV
2003 S55 AMG, 2005 C320 Coupe, 2020 Jeep Gladiator Mojave
Originally Posted by C230 Sport Coup
Codes from the fuel pump? I had none. One day it just died. Amazingly I was able to
nurse it off the freeway and into my work parking lot several MILES away with just a few PSI of pressure.
So far not replaced the CPS but I keep a spare in the glove box.
Plus a complete toolkit, and a spare coil pack.
As I understand,CPS doesn't throw a code.
Cam sensor will though.
That was my experience when I had a CPS failure. Car died, coasted into parking lot, crank but no start, no codes. After the car cooled down, it started back up and I was able to drive it home later that day. I tend to keep a "break down" kit with me too!
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