All Things Mk5 > How to Guides / Troubleshooting

Rear parking assist problem

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Schorly:
My 2009 Golf has developed a problem with the OEM fitted rear parking assist system. When I switch in to reverse the shorter beep is heard followed by a longer lower sounding on and then nothing. The sensor don't  seem to pick up anything. Any ideas on finding out what is wrong? Sensor or control unit? Maybe wiring? It was working in the morning and developed the fault in the afternoon.

Eddie-NL:
vcds scan would identify what the problem is

Schorly:
I haven't got one of those and I am not keen spending loads at the dealer

Eddie-NL:
find someone with vcds who can do a scan

the problem with OEM sensors is that if any one item fails it will knock out the whole system

Problems could be

Faulty Sensor / s
Faulty Buzzer
Damaged wiring
Faulty Module - probably not in your case

Schorly:
should I get one sensor and swap them over until I find the broken one. If it is the sensor?

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