X Series E70 X5 4.8i (N62TU) OFFRD
63 01 97 (244)
Light bulb replacement
Warranty analyses as well as returned light bulbs from the dealer organisation show that
light bulbs are often replaced at will and incorrect reimbursement claims are made. In many
cases, no fault can be found in the light bulb. This is reflected not least in high warranty
costs. Incorrect replacement is additionally responsible for repeated light bulb failures.
When replacing light bulbs, the following rules (which are already known) must be followed:
If a light system is defective, the function of the light bulb must be tested with a light
bulb tester (available from Osram, order number 41523) or a multimeter.
Intact parts will not be reimbursed.
If a light bulb is defective and shows distinct traces of black discoloration, the light bulb
with the same function (e.g. left and right parking light) can be replaced if it also shows
distinct traces of black discoloration.
Only replace light bulbs with the light system switched off.
Touch the glass bulb only with a clean cloth or when wearing a glove (risk of
premature failure due to local overheating).
Avoid surge loads in the light bulb and light system (risk of premature damage
Check contacts for traces of oxidation, clean if necessary and check contact
"Bogus repairs" by knocking on the light system can only result in temporary
In the case of a noticeably high number or repeated light bulb failures on a vehicle, the
wiring supply voltage should be checked with the BMW DIS.
Only light bulbs approved by BMW from the manufacturers GE, Osram, Philips or
Sylvania should be used for replacement purposes.
The reason for replacing the light bulb must be given on the warranty parts tag and clear
allocation of the light bulb to the vehicle (vehicle identification number) must be ensured.
SI Light bulb replacement All series
BMW AG - TIS
Issue status (12/2007) Valid only until next DVD is issued
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