Headlamp levelling device

[Richard SGH]

RX400h failed MOT on broken headlamp levelling device actuator rod. Anyone know where to get a new one?

 

[katabrontes]

If the link has broken it's probably because the attached sensor has jammed.  This happened to me and I replaced the link and the sensor quite easily (in 2018).  I found the parts on eBay but I had to get the sensor from USA (cost about £80).  I think the only option from Toyota or Lexus is the whole assembly which I recall cost £300+.

if you jack up the car and take off the offside rear wheel it makes it much easier to access the parts.  I would also pack the connector to the levelling sensor with silicone grease to prevent corrosion.  The sensor is a simple potentiometer and I believe the newer versions have much better sealing against water ingress than the original.

[steve2006]

Hi Richard and welcome to the LOC.

Either make one with some 6mm threaded rod and 2 swivel joints, the link below is for the LS400 but just measure the rod length on yours.

Parts available from RS Components Ltd.

https://www.evansweb.info/2009/11/23/ls400-ride-height-sensor-repair/

Or contact SGS Engineering in Derby who will supply a ready made one for around £50.00.

Or buy one on fleabay for around £20.00

https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=lexus+headlight+levelling+rod&_sacat=0

Or pay Lexus £500.00 plus fitting for a complete new sensor assembly.

If you are still stuck I can make you one but not until mid June as on holiday presently.

[Richard SGH]

Thanks both, very useful. 6mm seems a bit delicate for this replacement though!?

[steve2006]

Could be 8mm but can’t check presently

[katabrontes]

As long as the sensor assembly is fine there is very little load on the linkage.  Make sure you check that the sensor arm moves very freely.  If it doesn't you will have to replace it.  Take care with the securing bolts, they will certainly be corroded so give a good dose of penetrating oil before you try to undo them.

[katabrontes]

Having done a quick Google search it looks as if the sensors are now pretty cheap.  Probably worth replacing it anyway while you do the linkage which will make sure you don't get any more problems later.