06 Ls430 Cambelt Change Intervals

[arfur45]

Hi guy's

Quick question,

My ls430 has only done 45,000 miles but is 8 years old now.

There seems to be some disagreement as to when the cambelt should be changed on this model.

Everyone seems to agree on the mileage of 100,000 but the disagreement is on whether the change should be made at 6 or 10 years.

Do any of you chaps have a ls430 service manual to clear up the question?

Many thanks

Mark

[bookend]

10 years

[Lexmanic]

Hi guy's

Quick question,

My ls430 has only done 45,000 miles but is 8 years old now.

There seems to be some disagreement as to when the cambelt should be changed on this model.

Everyone seems to agree on the mileage of 100,000 but the disagreement is on whether the change should be made at 6 or 10 years.

Do any of you chaps have a ls430 service manual to clear up the question?

Many thanks

Mark

I don't think you should rely on the manual. You should remember that NOT being driven on a regular basis can have a serious adverse effect on ALL of the rubber including all belts & even tyres. As your has only done 45k in eight years (5,625 pa) I would suggest getting them changed now (not your tyres that is (unless they are old) but all of your belts)

[Lexmanic]

Forgot to say as you car has only done 45K its possible that one or more are original and if so you must get them changed

[arfur45]

Thanks for the replies guys

As it's been serviced at the same lexus dealer from new by the previous owner I guess they will know if anything has been changed during the cars lifetime.

Probably my first point of call.

[Malc]

With a full Lexus service history, especially at them same dealer, you should be able to get hold of the FULL Lexus printout of work and servicing carried out since new ........ including I would have thought, the bills !

Malc

[ColinBarber]

cam belt is 100k miles or 10 years, certainly not 6 years.

[Mybikes a cx500]

I think the likely point of failure is the water pump bearing, before the cam belt. Of course it would be daft to change the pump and not do the idlers, tensioner and belt

[Titch LS]

If it was me, I wouldn't change anything until 62k. Only at the 124k interval, (second belt change) would I have the waterpump replaced and not before. The waterpump on my Mk.4 was still o.k. at 123k when I had my belt, tensioners etc, changed for the second time, but I had it replaced anyway just as a precaution. On these motors the waterpumps last for ages with the right coolant.i.e. Toyota Red. Don't use anything else. The cambelt change interval is 100k for the USA market and 62K for Europe. (We do shorter journeys and more start-ups which reduces the life of the belt, apparently).

[Malc]

Hi guys, a post I put up earlier on the Engine Transmission section.

Malc

" I'd be amazed if it isn't simply 10 years / 100,000 miles ....... and take a miniscule chance on it all going pear shaped if you don't strictly adhere to these parameters

Reading other posts about the earlier Mk 1, 2 and 3 Ls400s where 63k is the stipulated figure ( apart from in the USA where it's 100k ( now ain't that dopey ) ) ................ I would feel comfortable with those Mks being left to 100k too .... as is the stipulated figure for the Mk4 Ls400 .

Malc "

[Ruud]

I phoned the Lexus dealer in Breda, Holland 2 years ago and they also go with 100k miles / 10 years for the older ones

[brendangeorge]

If you have a full dealer service history then they will tell you when to change the belt - 100K miles - I have had two done. It is not the sort of job you want to have done if it is not needed - however broken belt = scap engine.