kino1161

Sometimes when I use the left turn signal, it blinks fast as if a bulb is out. The bulb is not blown. Sometimes it works normal, sometimes it blinks fast as if something is wrong. What could it be?

08 ML350

Maj. Dundee

Switch bulb only to the right side and vice versa.

kino1161

Maj. Dundee

It will probably tell you that the socket is bad.

kino1161

Can I just replace the socket? What causes the socket to go bad? Thanks, for your help.

Maj. Dundee

Did you switch the two bulbs?

Brettriehl101

It's probably the socket. It's a pretty regular problem that can be fixed by cleaning all the connections in the socket and making sure the metal connections can actually make contact with the bulb.
there is also a repair kit available from mercedes but I was able to fix both of mine by cleaning in it up.

Brettriehl101

But you should still switch the bulb to the other side. Sometimes bulbs looks brand new but can have a faulty filament that doesn't work 100%

kino1161

Thanks, all!

kino1161

Can someone tell me how to actually clean the plastic bulb socket or how much to replace?

Maj. Dundee

Just buy a new one, about $8.

kino1161

Problem fixed. New plastic bulb holder.