VW MKIV Golf Jetta Mass Air Flow Cleaning DIY pdf
This is a guide to cleaning the Mass Air Flow (MAF) sensor, infamously known to VW owners as a problem part. This problem seems to have become more widespread with the release of the Mk. IV platform, which is apparently due to a bad batch of sensors from the Bosch factory. Although most of the faulty MAFs have been weeded out after having failed on their owners, the more hardy MAFs often survive until just after the car’s warranty expires. In most cases the owner is left holding a bill for several hundred dollars for a new MAF and labor costs.
The reason this guide was created is to help those owners who are having trouble with their MAFs. Symptoms include poor gas mileage, reduced power, poor engine performance, and often result in the MIL (Malfunction Indicator Lamp, also known as the “check engine light”)being triggered. This guide was designed specifically for people who either have had no positive results after multiple dealer visits regarding MAF related service, or are out of their warranty period.
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