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nondew 1/2/2012

2003 Volkswagen Passat GL 4 Cyl 1.80L

Preventive Maintenance

are the ignition coils suppossed to be too hot to touch? whats the best kind of spark plug to use?

chk eng. light keeps coming on after service. misfire,rough idle, replaced plugs and coils

1 Answer


Jimm 1/2/2012

First step, have the check engine light scanned - for free - at any local auto parts store such as; Advance Auto, Auto Zone, NAPA - for the stored fault code. Having the specific fault code will assist to pinpoint the problem or issue you are having.

Ignition coils will operate at a raised (underhood) temperature. The best spark plugs would be OEM (original) equivalent or better - those listed below are correct for your vehicle and application. The NGK spark plug is what your engine was origninally equipped with from the factory.

AUTOLITE Part # 3923
DENSO Part # 3145
ACDELCO Part # 41602
CHAMPION Part # 344
NGK Part # 6458


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