kalsingh1
Senior Member
- Joined
- Feb 4, 2005
- Messages
- 77
- Reaction score
- 3
- Location
- Walsall, West Midlands
- Your Mercedes
- SL55 AMG 2004
Hi all.
My underline problem is intermittent stalling. I have a SL55 AMG KOMPRESSOR 2004.
I have been on this a long time to try and find why the car inetrmittently stalls in the first 10 mins of driving then ok for the rest of the day.
Already cleaned the throttlebody, new fuel filter, new fuel pump.
I have access to STAR, and showed a fault with the secondary air pump, I replaced the relay, and this problem was solved, but immediately STAR reported fault on Heating Circulation pump -M13 or check wiring (N10/11) 3.20 to M13 for short circuit to positive. WOULD THIS HAVE NOT BLOWN A FUSE?
I checked the M13 pump and it was shot, but fuse f23(10 amps) was ok. So I replaced the bosch pump, but it is still showing the same fault, I know the pump is new, so it has to be the wiring right ?
Heres the strange thing, when I had the fuse f23 on the Heating Circulation pump -M13 pulled out, the stalling on the car improved by 95%, i did this several times to make sure.
1. Can someone please guide me on how to check the short circuit STAR is reporting, where to start ? (Could this be more likely a fault in the front SAM N10/11).
2. Have a plausable explanation how the stalling at very low speeds/idling is connected to the wiring to front SAM N10/11 ?
3. Do I need to perform a Exorcism on the car by a preist ?
4. Is there a relay that controls the Heating circulation pump - M13 that could have gone bad, if so I cannot find such a relay, I tried pulling them to kill F23, but nothing killed the power to it.
I hope someone on here has some experience of a problem like this.
My underline problem is intermittent stalling. I have a SL55 AMG KOMPRESSOR 2004.
I have been on this a long time to try and find why the car inetrmittently stalls in the first 10 mins of driving then ok for the rest of the day.
Already cleaned the throttlebody, new fuel filter, new fuel pump.
I have access to STAR, and showed a fault with the secondary air pump, I replaced the relay, and this problem was solved, but immediately STAR reported fault on Heating Circulation pump -M13 or check wiring (N10/11) 3.20 to M13 for short circuit to positive. WOULD THIS HAVE NOT BLOWN A FUSE?
I checked the M13 pump and it was shot, but fuse f23(10 amps) was ok. So I replaced the bosch pump, but it is still showing the same fault, I know the pump is new, so it has to be the wiring right ?
Heres the strange thing, when I had the fuse f23 on the Heating Circulation pump -M13 pulled out, the stalling on the car improved by 95%, i did this several times to make sure.
1. Can someone please guide me on how to check the short circuit STAR is reporting, where to start ? (Could this be more likely a fault in the front SAM N10/11).
2. Have a plausable explanation how the stalling at very low speeds/idling is connected to the wiring to front SAM N10/11 ?
3. Do I need to perform a Exorcism on the car by a preist ?
4. Is there a relay that controls the Heating circulation pump - M13 that could have gone bad, if so I cannot find such a relay, I tried pulling them to kill F23, but nothing killed the power to it.
I hope someone on here has some experience of a problem like this.