ColinBarber

On the SC430 there are 70+ engine fault conditions and 15+ transmission fault conditions that trigger the EML/MIL/CEL to come on. Some more serious than others. Anything major would result in the ECU shutting down the engine and not allowing it to restart. The next level down in severity would mean 'limp mode' where you would have restricted power just to get home. Lowest severity is where the driver may not notice any performance difference but could result in more fuel being used/high emissions etc. Certainly a common cause is a failed oxygen sensor as these have a finite life and typically start to fail at 60k to 100k miles, but it is very important to get the error code(s) to help narrow down where the problem is. All conditions will result in a MOT failure as checking the light first comes on with ignition and then goes out when the engine is start is part of the test.

Historically all the major services were different prices because air filter is only changed every 40k miles/4 years, plugs at 60k miles, coolant at 100k miles and then every 60k miles. So you paid a basic price (which is the 20k miles/2 years service) plus more for whatever extras were due. Very recently it seems Lexus have increased the cost of the 20k service but don't seem to be charging extra for the additional work that is needed. Whether all dealerships operate like that or some charge extra remains to be seen.

Is there a summertime toggle that needs to be turned off?

Does it do it when in Neutral?

The ECU has no real way of knowing if the ACIS valve is working other than measuring current when it powers it - therefore the coil in the valve, wiring or ECU itself are really only the real causes. As you say, it's a pain of a job because it lives under the intake. I don't believe it does. Connector for the valve but then into the main engine wiring loom back to the 12v feed and ECU signal.

They weren't really a big thing over here, unlike with the series I IS200 - mainly because most IS250s were autos. Rare things to find these days, and a bit of a pain to fit.

The CT can come as standard with 16" wheels so a 16" saver should be fine - but there are other measurements that affect the suitability in addition to just rim size. When you say it won't move, can you add a bit more detail there in what exactly didn't work? It is possible the saver only fits on the rear, so if you have a front wheel puncture you would have to do a bit more work to get going.

I've used them, but not for a few years now. No real issues but at the time they didn't check wheel alignment with proper measuring equipment, just looked at tyre wear but charge standard Lexus pricing where some dealers have properly invested in equipment and give you a print out of all the geometry reading. The not so great experience was when a mechanic left a large wrench in the bottom of my engine bay and when he couldn't find it they phoned up and asked for me to take a look. They came to my work and collected it the next day so no real inconvenience but if that had jumped up and caught in the drive belts they could have been looking at a £10k repair bill for a new F engine. My GS F was serviced with Reading because I wouldn't trust Guildford with it after having 4 separate bad experiences on previous vehicles. But it is more than a little out of my way so the UX just goes to Guildford.

Unfortunately it is only the facelift models (2018 onwards) where the Lexus system can be software upgraded to support CarPlay. You will need a third party system as suggested by Herbie.

Within the UK a missing DPF, where one was fitted when the vehicle was built, will result in an MOT failure. It doesn't matter how old the vehicle is. It is an offence under the Road Vehicles (Construction and Use) Regulations (Regulations 61(7) and 61A(3)) and the Road Traffic Act 1988 (Section 42) to use a vehicle on the road which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet (above and beyond what the MOT tests). Removal of a DPF will almost invariably contravene these requirements, making the vehicle illegal for road use. As this is UK forum, the forum rules about not breaking the law relates to UK law. As such we don't condone DPF removal. Topic closed.

Worked for me just now.

Members here have used SPC products but not sure where they purchased them from. https://www.spcalignment.com/component/spc/index.php?option=com_spc&task=detailsany

The kit should work. All the suspension parts are physically the same, even if the ratings are different.

A kit for the 250 should work. Springs/shocks have different ratings for the 220d only because of the vehicle weight difference, physically all the parts are the same.

What size is your spare?

are you able to record the sound?

timing belt every 60k miles, and worth inspecting it every major service.

Technically you need washers because the vehicle is fitted with HIDs. You could potentially fail the MOT without them being there and working.

Please post in the for sale forum using the template outlined here:

Possibly, or a plate change or was SORN between 05 and 13 (unlikely). It shows it was registered 1 July 1990 in the UK, not imported at a later date.

Within the UK, a yearly MOT inspection just tests for carbon monoxide and hydrocarbons in a petrol car to check the engine is burning fuel correctly and a smoke test for diesels. Also for a diesel the existence for a dpf, if fitted as standard, is checked to ensure it hasn't been tampered with or removed but that is just a simple visual check. An MOT doesn't indicate a vehicle is road legal, only that the elements that are checked are road legal, at the time of testing.

No, looks like a UK spec vehicle to me. Rear light clusters, stereo and instrument cluster all look correct.

Just a bit of light oil on a rag and wipe up from the bottom to the top a few times. If you wipe from top to bottom you will push dirt into the section below which will end up causing wear. Worth changing to a station with a low frequency before cleaning as the aerial will be highest (it varies in length across the FM range to get the best reception).

Within the UK under the Road Vehicles (Construction and Use) Regulations (Regulations 61(7) and 61A(3)) and the Road Traffic Act 1988 (Section 42) it is an offence to use on a road a vehicle which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet. The potential penalties are £1,000. In addition, under the Road Traffic Act 1988 (Section 75) it is an offence to alter a vehicle in such a way that the use of the vehicle on a road would be unlawful. A person altering the vehicle (if they knew or believed that the vehicle would be used on the road) could be found guilty of an offence under the Act. Potential penalties are unlimited fines. As a reminder, LOC forum rules include: Don’t break the law. Don't post about things that break the law, or that might encourage others to break the law. https://www.lexusownersclub.co.uk/terms-conditions/

By low voltage I mean 0 v. The system is designed to require the ECU and wiring to be in good order to not illuminate the warning light and therefore if the high voltage drops the light comes on. So if you put 12 v on the feed it should go out, and come on if at 0 v (and probably on if just disconnected). If you are going to connect the pin to 12 v or 0v then I would make sure the wiring at the ECU end is disconnected. I'm sure the ECU circuitry has overcurrent protection in it but best not to risk damaging it. I suggested checking the voltage at the ECU end rather than going through the trouble of getting to the instrument cluster - but as it sounds like you already have access then no need to work at the ECU end, unless you need to check continuity of the wire from the ECU through to the cluster.