Hi,

Took the car to the dealers because of an odd knocking/clicking noise from the passenger side rear wheel area when moving.

They diagnosed it as needing a new headlight adjusting sensor which is a sealed unit, part number 33146 S2A G01 [could be 901].

Anyway they said the part was

 

I would suggest you give a scrappies a ring and fit the part yourself! (You are talking about the auto leveller unit arnt you?) Unfortunately anything headlight related is expensive, i paid

 

Ouch 300 bucks
How are the headlights adjusted, took my car for an MOT recently and they were a bit low. MoT tester had a look but gave up

 

if you look down the holes in your inner fenders you will see a little crosshead screw, which you can turn to adjust your hid beams, try searching im sure there is a diagram on here somewhere

 

It sounds like the auto headlight levelling sensor; 33146-S2A-G01 is the correct part number and the cost is correct at about

 

I have the same issue with mine. I was quoted

 

I've just had a similar problem - I'd try greasing the linkage up first. I think the ball joints have a tendency to dry out and sieze. A dealer will obviously not want to do this as it might come back and also there's work in it for them. However - it's quick to do yourself and might get you by.

 

The headlight leveller can have a tendency to sieze as it did on mine. Mine made a moise that sounded like an old rusting pram, in that everytime I pulled away or braked there was a very loud squeeck.
I would just suggest removing the wheel and check for a siezed ball joint on the arm that connects between the leveller and the lower wishbone. Then just clean and apply some grease.

 

Does anyone have a picture of the level adjuster as this part number doesn't seem to be right?

 

I posted the correct part number above.

Chris.