Lydiamight

It is an "advisory" not a "fail" Unless you have problems with the handling I would leave it and see what happens when you have your next MOT in a years time. Probably the same :advisory:

Sixteen years old and never used a drop of oil between services

Hi herbie--I take your point, but the intruder alarm will not be operational when the 12 volt battery goes flat anyway.

Although it's fine under normal circumstances I have found that if we are away on holiday for three weeks or so the 12 volt battery on my Rx400h has drained by the time that we have returned. Decided to fit the following battery isolator switch https://www.amazon.co.uk/dp/B075CK7W3Z?ref=ppx_yo2ov_dt_b_fed_asin_title. for the princely sum of £6.99. Fitted in about five minutes and I can easily access it without removing the plastic battery cover. Prompt delivery from Amazon within one day of placing the order.. Yes, I know that it's from China but it looks to be solidly made. How do they do they do it? Subtract the VAT and it's £5.82, Presumably the seller wantsa to make a profit, deliver it to Amazon from the other side of the world and then Amazon delivers it to me.

Try these people. https://www.pfjones.co.uk/lexus-rx450h-2008-2016-witter-detachable-towbar.html They should be able to sell you the swan neck part

Amazon refer to it as Strimmer Cord--see below Shop Strimmer cord - Huge selection & great prices

If you can't find a long enough piece of curtain wire then try some heavy duty nylon trimmer cord--it worked for me.

I think that the grey key is a "Valet Key"--if working it should open the drivers door and start the engine but won't open the glove box. I guess that the internals are the same as the normal key but the key blade is cut in a different way.

I note that this immobiliser uses the 2G network---a network, which along with 3G is due to be switched off over the next few years. The very latest date that the networks will be switched off is 2033 but it is likely that most operators will switch off these networks much sooner

Another thing to check is that the calliper side pins on the rear brakes are free and not sticking. A common fault as the region mode means that the rear brakes do not get a lot of use. Easily fixed by making sure that they are properly greased at regular intervals..

Hi Rowley--Car has been ultra reliable other than the aforementioned coolant leak, and that was an inconvenience rather than stranding me somewhere. Only other thing was that the original 12 volt battery did give up after 13 years! Never failed an MOT and has never even had an advisory in its entire history---this one's a "keeper"

Had this problem on my 2007 RX400h--the radiator and the pipes coming from it are plastic.Over the years the plastic becomes more brittle and the constant "flexing" as the engine moves slightly on its mounts causes either the radiator itself, or in my car, where the coolant pipes enter the radiator, to leak. I used a local specialist for the repair. His advice was that he could probably repair the leak with some plastic welding but that was probably not a long term solution. Non OEM radiators were available but I decided to go with a factory original radiator on his advice. The original had lasted for 12 years and a new Lexus radiator will probably see me out.

Just use Waze on your smartphone---has all the information that you need

I had a leak in a similar place in my 2008 Rx400h---the radiators and spigot pipes for the hoses are made of plastic. After many years and miles the plastic become brittle and hardened and the natural slight rocking of the engine on its mounts eventually causes a leak where the spigot pipes enter there radiator core and flex with the slight engine movement.. It's definitely a radiator out job and you may be able to plastic weld around the spigot pipe onto the radiator. My Lexus specialist advised me that would only be a relatively short term solution and it would be best to fit a new radiator. No problems since then. I am afraid that I have no idea why it should affect the hybrid system.

I had the rubber cover shown in your email perish on my 2008 Rx400h---although the catch was still working. I purchased the same one as shown. in your email. It was a bit fiddly to instal and I ended up using the original screws rather than the ones supplied. It was replaced because I was fearful of water ingress into the switch mechanism. All working fine.