eMJay

I just can't believe you've been driving with a knocking noise for such a long time. Has it not been serviced in that time as I would have expected it to be picked up during a service.

It went through two services and MOTs while the noise was there and no comments were made regarding it and I even asked Lexus to look for it on one of the services, but then again I could never make it happen with the car stood still.

My knocking noise has completely gone. It might be coincidence, but I noticed it started to get quieter and quieter around the time I started having problems with my headlight auto height adjusment and now that has completely failed I don't have any knocking noise at all.

Does anybody know where the auto headlamp height adjustment system fuse is, so I can remove it and hopefully get rid of the warning light on the dash? I've looked in the engine bay and the front foot wells, but can't see an obviously named fuse.

I can't fault the engine on my 430 Sport, but the niggles I've got/had with the car plus my lack of interest in the look of the new models has put me off buying the brand again to be honest. At most I would get an old IS200 if I was to get another Lexus. Once Christmas is out of the way I will be looking into changing my car.

I had a chance to look at the height sensors and there was nothing visibly wrong, so I gave them a good clean but the problem still persists. I really wish I knew if it was one or both, so there was a possibility I wouldn't need to spend money on a part I may not need, especially with their price. :( This is going to have to wait until next year to be fixed properly. In the meantime I've disconnected the headlight motors.

Sounds like a modern Toyota/Lexus to me. Anything made before 2000 lasted forever, then the rot started creeping in.

That's how I feel about my current 2003 GS 430 Sport compared to my old 1996 GS 300 Sport.

the problem I have is that the fob will work fine for any amount of time, lock/unlock no problems, then for no reason whatsoever wont unlock with the fob for days, leaving me red faced with the alarm screeching away lights flashing as I drive head down away from home, till it's had enough and stops!

I have changed the fob battery several times but this seems to make no difference, I now dont trust it and lock with the key and only unlock it with the fob. Any one had this problem?

My old 1996 Series I Sport suffered this problem sometimes, but due to the revised alarm Toyota used the only way to arm the alarm was via the key fob. Locking the door with the key would not arm it like earlier GS300s (like the ones that had the alarm button integrated into the car key).

My local dealer had a look at this issue when the car was being serviced last week and they said they couldn't tell if it was one or both sensors at fault, if it was just one they didn't know which one, and that I will probably have to replace them. They are £270 + VAT each before labour.

I'm disappointed with a fault of this nature on a six year old car, and a Lexus at that.

I still haven't got to the bottom of this yet and have noticed that the lights do project ahead of the car while the warning light is on, but as soon as the warning light goes off you can see the headlight beams move and point to the floor in front of the car, which is where there then stay until you turn the ignition off and on again. At least I know the headlight level motors are working.

I haven't had the opportunity to check the auto levelling sensors yet, but I have noticed that the warning light is staying on for a lot longer now and the headlights are not projecting very far in front at night, like they are aiming down.

I really hope a simple disconnect and clean operation will be sufficient to fix this, because I haven't got the money to replace the sensors at the moment.

I had Falken FK451 and then FK452 tyres on my Series I Sport and will probably go with the FK452 on my GS430 Sport when the time comes to change the tyres.

My 2003 GS430 Sport did the clicky start thing for a while and then stopped doing it before I got round to taking a look at the starter motor.

Seeing that Series I makes me miss my black 1996 Series I Sport. I got £2,000 for it when I traded it in against my 2003 GS430 Sport.

Have a look at this diagram mate, should help with the locating of the parts.

clicky

Thanks. I'll be sure to have a look.

Isn't the leveling sensor connected to the rear suspension somewhere, maybe a link has seized up on it or come adrift?

Thanks for the information. If someone could let me know the location of this sensor so I can have a look, then that would be great. (I don't have an owner's manual.)

I've reserved one from Lexus Bham at £63.62 inc vat

Halfords website quotes in the £90ies

How things change; a main dealer cheaper than after market!

Get a price/quote from Lexus as well. When I needed a new battery for my IS200 Lexus Leeds could supply me with a battery cheaper than Halfords!

I forget to say that when I got mine in 2004 I went with Halfords because they were a lot cheaper than the main dealer at the time. It might be different now though.

I've got a similar problem with my 2003 GS430 Sport. Hopefully one of us will get a reply eventually.

http://www.lexusownersclub.co.uk/forum/ind...mp;#entry686568

Recently I've noticed the auto headlight level warning light has been coming on after I've started the car and it's already gone on and off from doing the initial checks. I've tested them in the dark by putting the headlights on before I turn the ignition on and you can see both beams move up and down and then level out, but sometimes after I've started the engine this warning light comes on and stays on for at least a minute before going off.

Does this mean there is a fault or would the light stay on constantly if this was the case? What would the fault be, being as both lights move during the car's own test?

Any ideas about this in general would be greatly appreciated.

The Battery on my 1996 GS300 Sport died after about a month of owning the car in 2004, so I got an own brand heavy duty one from Halfords for about £40-60 and it never let me down in over four years of ownership.

It was a chore when I was trying to get a new one when I had my 1996 GS300 Sport. In the end I got one from someone on these forums, but tended to use a flat head screwdriver between two of the points, which worked fine and never broke.

I tried activating Dual mode and both sides work separately as I've described above without Dual mode on.

You might want to add this link to the first post:

http://www.manuals.ws/files/list/brand/2/

:)

Firstly, great post. :)

Secondly, please can someone point me in the direction of a page that tells you about the dashboard warning lights on a 2003 GS430 Sport. I need to know what it means when the orange headlight tilt light comes on for about one minute after you start the engine (this is after it has already come on and gone off when you turn the ignition to on before you start the engine).

GS430/300 Service Manual:

http://bahamutcars.free.fr/workshop/GS_97-...ents/index.html

Here's what I've noticed in the cooler weather: the heat it blows out is cooler than when the outside temperature is up, but it stays the same from 16 until 21-22 and then you can feel it blowing hotter. This is with the car's engine at normal operating temperature.

Is there anything I do to fix it or is it more severe?