Today I was changing the air filter and I noticed that the previous mechanic had bodged the outpipe coming from the air filter cover.
However, that pipe goes into a box of some kind. I noticed some carbon build up in that box when I removed the pipe.
Can anyone tell me what that box is for?
Below is the bodged pipe and under that is a picture of the inlet for the pipe which leads to some kind of box in the back of the engine.
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Chat about your MKV (6N2) Polo
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Thats the crankcase breather. The bit in the hose with the plug is the heater for the crankcase breather