lewis

Does anyone know were I can buy a set of genuine OEM floor mats for my MK4 LS400. Lexus main dealers say they don`t stock them anymore.

Many Thanks

Simple fix, mine had done the same. Get a part used tube of windscreen cekaflex from your local autoglass or national windscreens, they might charge you a couple of quid. This stuff will bond anything and is black so matches the black trim. Repaired mine about a year ago and despite catching kurbs a couple of times it has stayed bonded together. Hope this helps.

Hi Everyone

Has anyone done a re-gas on the aircon themselves, my LS (Mk 4) is now living out it`s retirement in sunny Majorca and although the A/C works OK I think a re-gas may be an advantage for this summer. Many Thanks.

Did you re-connect the Battery and leave the ignition switched on for 6 mins and then try to start the car. The 6 mins allows the ECU to reset itself BEFORE trying to start the car. Good Luck

It`s the Battery !

Mine Mk4 did the same thing. Battery tested ok but sometimes car would just not start. Replaced the Battery with a new one from Lexus and all is fine.

Hi,Just replaced my Battery on my LS400 (1999 Mk4) bought genuine toyota Battery from lexus. The Battery does not seem small put the part number they gave me is not the same as quoted in earlier posts. Part Number 28800YZZAG. Hope this helps.

Hi I think Mobil 1 is a great oil but I don`t use it in me LS400 (90K mikes) I think it may be a little too thin a 5w-30w or 5w-40W oil would be better I use a Mobil semi synthetic, I wish they still made Mobil 1 at 5W-30W like they used to.

I am having a similar problem with my MK4. Steering wheel does the same thing but will not move in and out on the button, up and down is OK. Would love to know a fix to the problem, is there a seperate fuse for both up & down and In & Out ??

thats interesting Peter, I wonder if the MK4 is the same ? Do you hold both the lock & unlock buttons together at the same time for 10sec ?

I have not got a manual for the Mk4 so perhaps someone could tell me if the procedure is shown for the Mk 4.

Many Thanks

I can only find a fix for the "up and down" movement but not the "In and Out". From what I have read the by the time the Mk4 was in production there had been several modifications to the system. Someone must have the same fault and come up with a solution any help would be apreciated. Regards Lewis

Thanks steve, but the problem is it will not unlock or lock with the remote

One of my keys (3 button) will not lock the car remotely, it works fine in the doors and ignition. If my wife has used her key to lock the car remotely then when I unlock the car with my key in the door the alarm goes off. Could it be the Battery in my key, although the little red light does work on the key ??

It`s not the Battery just fitted a new genuine lexus one and alternator charging at 14.2V, so looks like another area is the problem but thanks for the idea. Lewis.

The automatic steering wheel adjustment on my Mk4 has decided to have a mind of its own all of a sudden. When you put the key in the ignition the wheel moves down a little but not to the position of the memory (seats etc all move to set memory position). The steering wheel moves up and down on the button but will not move in and out.

Questions :

1. is the "in and out" movement on a seperate fuse.

2. I have seen a fix on the forum for the "up and Down" movement but not the "in and out"

3. I can`t hear any motor working for the "in and Out" which suggests a problem.

Anyone else encountered this before ???

Yes your all right, new Battery fitted and problems fixed - what an easy life !!!!!!!!!!

Hi Alan

Thanks for that information, I will try removing my sunglasses from the centre armrest to see if that helps. Does anyone know how you get at the sensor under the armrest in case I need to adjust it.

I am sure I have read reports on this problem before but can`t remember if a solution was found. The alarm sets fine and locks all the door as normal but some times the alarm goes off for no reason. Can this be attributed to hot days or can the internal sensor be adjusted in any way. Many thanks for you help.

Fantastic, one less thing to worry about. Thanks Steve

Does the Mk IV suffer from the same problem of leaking power steering pump as older models did or had lexus found an answer to the problem by the time the Mk IV was released.

Thanks for your thoughts and input.

It looks like a new Battery might be the order of the day and hopefully that will solve the problem. It looks like the car might be shuting down any electrical system so save power. Is the dash nc speedo, tacho etc together with the speeed sensitive steering, air con and electric windows all on the same circuit ?? The seats, radio etc still continued to work, and all came back to life when I restarted the car.

Here is the story.

Had my car ( LS 400 (mk4)) in storage for a couple of months always worked like a dream. Came to start and Battery completly flat had to reboot the imobiliser by waiting six mins with the ignition on (thanks for the help from Neil at Bolton Lexus). Drive the car 50 miles and started fine next morning running like a dream. Driving along the motorway at a steady 70mph when all the dials go off including the A/C and the electric windows and the assisted steering, radio and seats work fine, stop car and restart and everythibg works fine again. Has anyone any idea on whats going on or is it the sign of impending doom

Hi Steve

The car is a mark IV with sat nav and all the toys. The remote has 3 butons (open, close and boot switch) I have two keys both the same . Can you have a new key programed from the original key without the car being there (car is over at our house in spain for the summer)

Regards

Lewis

I have just bought my first LS400 and am very impressed with the car, which only seems to have one fault. Not every time but perhaps once every couple of days the alarm will go off and it seems the only way to stop it is to lock the car with the key rather than the remote !! any ideas ??

If the battery goes completly flat are you still able to open the doors with the key.

Many thanks

Welcome and congrats on making the choice.

Couple of points.

1) Have you utilised the search facility, it really is a massive resource.

2)Is it a late MKIII or early MKIV?

3)What sort of remote do you have?

I have just bought my first LS400 and am very impressed with the car, which only seems to have one fault. Not every time but perhaps once every couple of days the alarm will go off and it seems the only way to stop it is to lock the car with the key rather than the remote !! any ideas ??

If the Battery goes completly flat are you still able to open the doors with the key.

Many thanks

Thanks Steve, that solves that one. Regards Lewis