2820 2821 error codes
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2820 2821 error codes
Hi all again. I noticed a couple of error codes 2820 and 2821 in inpa. Does anyone know how to resolve it? I have found a bit online about it being the disa valve, is it worth changing or does it not make any difference to the running of the car? I clear the codes but they come straight back. Car is an 05 545i