P0300/ P0304
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Joined: Aug 2006
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From: NY
MB C32 AMG
P0300/ P0304
Alright, in the past week I noticed the car started running funny. During Idle, the car vibrates like it's about to stall. If I switch from D to N it improves things a little since the RPM slightly goes up. I don't have any CEL or warning lights on but decided to scan it anyways and now see
P0300 multiple/random missfire
P0304 Cylinder 4 Missfire
I don't know where to start? Car has close to 150K on the dash, replaced the wires and plugs less then 30K miles ago (the ones from letmotorsports)
I also have to replace the IC pump (again) not sure if that has anything to do with it.
Thanks!
P0300 multiple/random missfire
P0304 Cylinder 4 Missfire
I don't know where to start? Car has close to 150K on the dash, replaced the wires and plugs less then 30K miles ago (the ones from letmotorsports)
I also have to replace the IC pump (again) not sure if that has anything to do with it.
Thanks!
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LET C32 2002
Alright, in the past week I noticed the car started running funny. During Idle, the car vibrates like it's about to stall. If I switch from D to N it improves things a little since the RPM slightly goes up. I don't have any CEL or warning lights on but decided to scan it anyways and now see
P0300 multiple/random missfire
P0304 Cylinder 4 Missfire
I don't know where to start? Car has close to 150K on the dash, replaced the wires and plugs less then 30K miles ago (the ones from letmotorsports)
I also have to replace the IC pump (again) not sure if that has anything to do with it.
Thanks!
P0300 multiple/random missfire
P0304 Cylinder 4 Missfire
I don't know where to start? Car has close to 150K on the dash, replaced the wires and plugs less then 30K miles ago (the ones from letmotorsports)
I also have to replace the IC pump (again) not sure if that has anything to do with it.
Thanks!
Based off a similar issue I had the multiple / random misfire is usually caused by one cylinder misfiring...well my issue was cylinder 6 gap was off from rest...I bought new plugs and thanks to AMG JERRY got them installed and gapped properly and issue is no longer non existant. I would check that the gapping on all are identical also that the wires are making firm contact and lastly the coil packs make sure there is no currosion on them or underneath them if so clean all contacts properly. GL
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From: OC
C32
Make sure Cyl 4 plug wires are on tight. If they are I would swap the plug wires from Cyl 4 with another cylinder and then re-scan the codes after driving for awhile. See if the same cylinder is mis-firing or it moves to the cylinder you swapped the wires with.
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From: Houston/ Austin /Toronto / UAE / Minneapolis / Orlando /Cincinnati
Eurocharged Performance ML63 and TT lambo
first thing to do...see if its wires or cold packs
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From: Houston/ Austin /Toronto / UAE / Minneapolis / Orlando /Cincinnati
Eurocharged Performance ML63 and TT lambo
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From: NY
MB C32 AMG
Back to this...
Today, about to go home from work I start the car and see "Battery/Alternator low, visit workshop!" flashing in red. I left the car in the parking lot since I was not sure if I would make it home before the car would stall. I am about to order the Valeo Alternator from alleuropeanautoparts for $290. Is this a DIY job? Has anyone replaced one before?
Btw, I did not swap the spark plugs yet posted in original threat, probably will replace them when I do the alternator.
Today, about to go home from work I start the car and see "Battery/Alternator low, visit workshop!" flashing in red. I left the car in the parking lot since I was not sure if I would make it home before the car would stall. I am about to order the Valeo Alternator from alleuropeanautoparts for $290. Is this a DIY job? Has anyone replaced one before?
Btw, I did not swap the spark plugs yet posted in original threat, probably will replace them when I do the alternator.
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CLS55 Designo 030
Check your idler pulleys.
You don't necessarily need to swap the alternator; a bearing in the pulley system might be busted.
Turn on the car and take a look at your belt. If you can get someone to rev the car while looking at it you might see some wobbling.
GL
You don't necessarily need to swap the alternator; a bearing in the pulley system might be busted.
Turn on the car and take a look at your belt. If you can get someone to rev the car while looking at it you might see some wobbling.
GL
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From: Corona, CA
03 g35 coupe...........02 c32 Sold
Back to this...
Today, about to go home from work I start the car and see "Battery/Alternator low, visit workshop!" flashing in red. I left the car in the parking lot since I was not sure if I would make it home before the car would stall. I am about to order the Valeo Alternator from alleuropeanautoparts for $290. Is this a DIY job? Has anyone replaced one before?
Btw, I did not swap the spark plugs yet posted in original threat, probably will replace them when I do the alternator.
Today, about to go home from work I start the car and see "Battery/Alternator low, visit workshop!" flashing in red. I left the car in the parking lot since I was not sure if I would make it home before the car would stall. I am about to order the Valeo Alternator from alleuropeanautoparts for $290. Is this a DIY job? Has anyone replaced one before?
Btw, I did not swap the spark plugs yet posted in original threat, probably will replace them when I do the alternator.
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Joined: Aug 2006
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From: NY
MB C32 AMG
I decided to do it myself and what a pain in the a**... any one ordered the Valeo Alternator and noticed the alternator pulley is not as wide as the OEM? I noticed it after I put everything back together... old pulley has 7 tracks and the new one has 6. Now I guess I'll have to take the old OEM pulley and put it on the new alternator. 
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From: NY
MB C32 AMG
yea i am having problems with the bottom portion of the Altenator... the bolt won't go in so I am guessing it's not aligned right. I don't want to take it out since it took me almost two hrs just trying to get it in between the sleeves. I hope I can remove/install the pulley without moving the altenator and have to figure out how to align the bottom since there is not much room to see what's going on. It all makes it more harder since I am doing it in a parking lot at work.. would be nice it if was sitting home in my driveway.
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Joined: Aug 2006
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From: NY
MB C32 AMG
Swaped the alternator pulley (local car parts store did it for free in less then a min) then I put the alternator back in the car (this time it went a little easier, guess was lucky) and the car is back up and running.
I still have the vibrating issue, replaced two spark plugs at cylinder 4 and no difference (although the plugs looked pretty bad) I guess next step is to replace the wires (anyone know if LETMOTORSPORTS still sells them? I don't see them on their website) if that does not work, I'll go back to OEM I guess
I still have the vibrating issue, replaced two spark plugs at cylinder 4 and no difference (although the plugs looked pretty bad) I guess next step is to replace the wires (anyone know if LETMOTORSPORTS still sells them? I don't see them on their website) if that does not work, I'll go back to OEM I guess
