Drivers' door key hoel won't work

[Mordan]

Hello,

it started in my E34. they key is loose in the driver's door. So I have to open/close the car with the boot's lock. But even then, the front driver's lock doesn't work.

I have to open the rear door in order to lift the lock from the inside.

I have central locking

Can I change the failed lock without changing the whole set of locks? thx!

[Kibokojoe]

Have you tried graphite in the lock?

[uscharalph]

Have you tried graphite in the lock?
That stuff always does the trick for me.

[Mordan]

Have you tried graphite in the lock?

no but I will :), graphite? the additive you put in your engine oil?

[Ross]

Powdered graphite, sold here in "puffers" that blow a bit of the dust into the lock.
I usually wash the lock out first with liberal doses of WD40 followed by brake cleaner, then the graphite.

[Kibokojoe]

Yes WD40 and powered graphite only