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Bad Engine Noise and Light

1.3K views 9 replies 6 participants last post by  sipes216  
#1 ·
I think I have a serious problem with my 03 Passat with 59k miles. The engine light came on

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And a loud metal knocking sound. Anyone encounter this and any suggestions. I don't want to drive it, so I will need to have it towed to a dealer or garage.
 
#6 ·
Judging from your problem description, it sounds as if you have a bad coil pack. Pop your engine cover and make sure they are all seated properly. If they are, then you have to get those codes read somehow... without codes, anything we can do is just guessing.

SirWired
 
#10 ·
coil packs don't neccessarily have the same noise, but the same effect. sluggish , misfire-hell, and flashes CEL.

the metal noise i link to the timing belt because you have an interference engine design, which means that the pistons and valves both occupy the same space when active, to produce a higher compression ratio, in less space.

on some cars, the timing belt can slip due to age or whatnot, and you'l have the same effect as not having a timing belt at all, eventually.