Replace plugs coil wires checked.1 Misfires E430
Thread Starter
Newbie
Joined: Sep 2019
Posts: 6
Likes: 1
e430
Replace plugs coil wires checked.1 Misfires E430
Check engine light came when car at idle, but runs OK with no misfire at higher speed. I used OBD scanner which showed misfire in cylinder 1. Engine still misfired at cylinder 1 after I replaced plugs, coil and check plug wire resistance within 2.5K Ohm (over 10K ohm is bad).
I plan to replace fuel filter next weekend. HOpefully this may be the problem as fuel filter has not been replaced for the last 50,000 miles. I always buy COstco gas which is pretty clean.
My 2001 E430 has 101,000 miles.
1) are there any other items that I have not mentioned here that can contribute to misfiring?
2) Does Mercedes recommend any fuel cleaner additives to be used on our Mercedes?
Any feedbacks or comments are greatly appreciated.
I plan to replace fuel filter next weekend. HOpefully this may be the problem as fuel filter has not been replaced for the last 50,000 miles. I always buy COstco gas which is pretty clean.
My 2001 E430 has 101,000 miles.
1) are there any other items that I have not mentioned here that can contribute to misfiring?
2) Does Mercedes recommend any fuel cleaner additives to be used on our Mercedes?
Any feedbacks or comments are greatly appreciated.
MBWorld Fanatic!
Joined: Nov 2015
Posts: 1,456
Likes: 140
From: Westcoast/Interior
02w163ML500 / 97w210E50AMG / 99w202C230k / 95w124500e-wip
Check engine light came when car at idle, but runs OK with no misfire at higher speed. I used OBD scanner which showed misfire in cylinder 1. Engine still misfired at cylinder 1 after I replaced plugs, coil and check plug wire resistance within 2.5K Ohm (over 10K ohm is bad).
I plan to replace fuel filter next weekend. HOpefully this may be the problem as fuel filter has not been replaced for the last 50,000 miles. I always buy COstco gas which is pretty clean.
My 2001 E430 has 101,000 miles.
1) are there any other items that I have not mentioned here that can contribute to misfiring?
2) Does Mercedes recommend any fuel cleaner additives to be used on our Mercedes?
Any feedbacks or comments are greatly appreciated.
I plan to replace fuel filter next weekend. HOpefully this may be the problem as fuel filter has not been replaced for the last 50,000 miles. I always buy COstco gas which is pretty clean.
My 2001 E430 has 101,000 miles.
1) are there any other items that I have not mentioned here that can contribute to misfiring?
2) Does Mercedes recommend any fuel cleaner additives to be used on our Mercedes?
Any feedbacks or comments are greatly appreciated.
One cylinder only. I presumed you cleared the codes anyways? after the plug change and coil and wire for that cylinder?
I would just monitor it for now.
As for some love potion for your w210, try 1/2 bottle of seafoam (thru the vacuum line at the BB) and then the rest in the tank.
(note- have someone rev it up for you as you add it thru the BB.)
You'll get alot of white smoke at the tail pipe so forewarn your neighbors that are nearby.
MBWorld Fanatic!
Joined: Nov 2012
Posts: 6,130
Likes: 1,117
A gaggle of MB's
1. Fuel filter Mahle - Bosch - or MB part only - and NOT poor China knockoff's - you will need some small hose clamps to replace the MB "trickster" clamps
2. I am not a fan of Seafoam - I choose to use 1/2 bottle Stabil Marine Fuel Stabilizer to start injection clean up
3. Clean MAF and instake - fresh Mann airfilter(s)
2. I am not a fan of Seafoam - I choose to use 1/2 bottle Stabil Marine Fuel Stabilizer to start injection clean up
3. Clean MAF and instake - fresh Mann airfilter(s)
Thread Starter
Newbie
Joined: Sep 2019
Posts: 6
Likes: 1
e430
i cleared the code, but the code came right back as soon as i turned the ignition key. So I thought it has to do with a short, i.e. fuel injector solenoid short. While working on getting the injector out, I broke the brake master cylinder vaccumn hose connector. Now I need to figure out how to get the broken connector out and replace the brake vaccumn hose.
