S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

W220 320 engine misfire

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Old Apr 8, 2023 | 02:16 PM
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Mercedes Benz S320
Question W220 320 engine misfire

hey guys wondering if any of you guys had a misfire issue on the 320 e32 engine. If so what was the problem and what was your fix?
also wondering what kind of power modification is there and is a ecu map and tune going to be worth it. Thanks in advance and happy driving!
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Old Apr 10, 2023 | 01:18 PM
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no ecu maps for non amg ..

but why not use the built in sport and winter features?

the straight 6s are easier to work on than a v8, but the 8 is where you want the power to be. much easier to do a ignition tune up on a 6, diy friendly

also to answer your main question, I would highly recommend replacing the spark plugs, ignition wires. and whatever else ignition components that are part of a routine "tune up," should be a great place to start if its not fuel related. there are 2 plugs per cylinder on the 6 cylinder also I believe


Last edited by e350forme; Apr 10, 2023 at 01:24 PM.
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Old Apr 26, 2023 | 04:18 PM
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Mercedes Benz S320
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Hey there Thanks for the tips last time i changed the spark plugs and it worked perfectly for a week. Then i was going for a drive i pushed the engine a bit. i noticed engine check light yellow was blinking so i stopped the car and checked the code with a obd2 reader and there it was again misfire on cylinder 5 and 6. any tips on what i should try next? Also should i use a injector cleaner? Thanks in advance and for last time
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