Drivers door latch actuator part number

[Chakkanay]

Help please....

My drivers door has long been suffering with the latching issue and has to be closed gently or it jumps back. I understand it's probably going to need a replacement door latch actuator but am coming up with the following 2 numbers being applicable:

4O2 837 016 (7zap)
4B2 837 016 G (7zap)

RS6 C5 2002 RHD

Can anyone confirm which one is correct please (I think it's the 1st one)? Also where to source. Are OEM the only ones worth buying?

Thanks.

[Mɐʇʇ]

Ebay! I know this is passengers, but that's what I needed for mine....
http://www.ebay.co.uk/itm/331078677342? ... EBIDX%3AIT
Good quality, great price - sure you can find a RHS one.

[Chakkanay]

Thanks. As long as they're not made of chocolate, seems a good price!