heres the bulk of the bulletin -
workshop findings
The opening or closing of the vehicle with the remote control is not possible with one or both keys.
Sometimes the function can be briefly restored by switching the ignition on and off.
Technical background
Physical phenomenon in the remote key.
Production change
New key
• Replace all remote keys with the part number 8E0 837 220 without index or with index A, B
or C, not only the incorrect ones. A key set with two remote keys has been put together -
part number see table below.
• With remote keys - part number 8E0 837 220 with index E, F, G or H, or. K, L, M or N - only
incorrect keys must be replaced.
• On remote keys with part number 8E0 837 220 with index Q, T, R or S the radio unit battery
must be checked first (idle voltage must be U >= 2.9 V), replace the battery if necessary and
resynchronise the keys. If the complaint recurs, replace the incorrect key.
• Ask the customer to bring along all his keys (spare keys). All keys must be readjusted to the
immobiliser. Please observe also TPI 2011525.
The part number is on the keys. You can see it by unfolding the key bit.
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