Question about 2002 Mercedes-Benz S-Class
I have changed all sparkplugs at dealer, but # 4 & 5 cables are failing so I bought the whole set of Bosch wires. I thought they would be 8 short and 8 long, but they are as specified above, 9G (short) 2H,4K and 1L Long. Which goes whare?
It is easiest to size them up by placing the coils back on the valve covers so you can see what will work. I know from experience that the new wires will not be exactly the same as the old. As a general rule the 2 longest will go on #1 and #5 cyl.-the first plug on the first coil on the left and right. Generally the shorter ones go on 2nd plug of each coil but I beleive there is one possibly two that go on the first, Just size them up and make sure there is enough slack and the wire fits on the plug securely. The 1st plug on each coil goes to the forward plug and the 2nd goes to the 2nd plug. This is the most important part becuse the vehicle will not run correctly if they are reversed. I would suggest taking your vehicle to a reputable repair facility and have the adaptation values reset with a scan tool since you are fixing the ignition problem A lot of times after an ignition repair the adaptations for the air/fuel mixture change rapidly and the engine module sets a fault. I would also clean the elctrical portion of your mass air flow semsor too ensure proper metering of the intake air-I hope I have been helpful-do not gap your platinum spark plugs or the surface of the electrode will get damaged
Posted on Jun 19, 2009
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Posted on Jan 02, 2017
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