TomSaintJames

Well as seems to very commonly reported, kwikfit etc are talking out of their behinds! Rear Discs 9.92mm Rear Pads 8.04 (of friction material) Saves me a job! I can return the new discs and pads, might aswell adjust thd handbrake and grease the sliders whilst I'm here.

@ColinBarber ah, I have bought a refurbished rear wiper that didn't come with any of the washers... Damn!

Thanks for an excellent reply Colin 👍

Morning Lexus folk, I have two questions that I'd like to ask: 1. Minimum rear brake disc thickness, I've been reading online for the past hour and have seen many different numbers posted - 6.5/8/8.5mm. Does anyone know where I can find the correct thickness for my car? I think the discs on the car are the originals, it had just over 100k miles when we bought it a few years ago and were over 150k now, I replaced the fronts (and pads) when we bought it. Funnily enough, when kwik-fit put some tyres on earlier this year they tried to sell me rear brakes - dream on boys. 2. Rear wiper assembly. This was seized, lubricating made no difference so I removed it and because the nut and metal washers were seized either side of the glass, I only went and broke the glass... I was being so gentle as well! A new windscreen later and I now need to source these inner and outer washers with their rubber gaskets. It took me 20 minutes of gentle persuasion just to get the wiper arm off the splines! I can find a part number for the outer metal washer (85169R) and the nut (85168R) but not the inner washer. The complete assembly is obviously now off the car, but I cannot undo the nut without further knackering the apparently quite soft metal - below is how it came off the car. What I think happened is the whole washer assembly was turning as I was trying to undo the nut, the locating tab at the rear hit the wiper motor housing, pushed it out and broke the glass. It did go bang! I'd appreciate your thoughts, I'm yet to contact Lexus themselves for the rear screen parts but will do so.

Outstanding! Thanks folks, hopefully a very easy fix to the issue 😄

Good afternoon good Lexus folks, I have a query regarding the drivers door window electric controls. My 2007 RX400h SE came back from its MOT just before christmas with the non-driver window control not working from the drivers switch pack, each window works on its own switch still. For the MOT it needed handbrake cables, before I either get cross with the garage or get stuck in with wire chasing, could it be something simple like a dislodged connector from cable adjusting etc? I'm 99% certain the fault occurred after/during the MOT as I noticed it as soon as I got home after picking the car up - I should have phoned the garage but I was due to start a night shift and really couldn't be dealing with it - now that christmas and new year have hapenned etc I could do with getting it sorted (not to mention the other half giving me stick for it 😅). Thanks, Tom

Hello James! A small world, even on the world wide web lol. I do remember your thread about the Auris, if I had the funds an estate version could be acceptable, not sure of the looks though. I'll admit to being a Lexus convert, most things just seem to be so well thoughtout and sensible, not to mention a sight more luxurious than other brands.

Thanks for the explanation Olliesgrandad! It's been a little while since i've been on here but we've been gradually and more recently, increasingly, losing coolant. Back along it would only require topping up once a week at most and the moor you put your foot down, the more is lost. Originally I though this due to the 'open' coolant system having evaporated and the coolant was just low, however it is now using too much to believe this. In my researchI stumbled across several posts of people that also have suffered coolant loss, due to a split. cracked or otherwise compromised radiator. So more research commenced and it looked a right fiddly job... As we don;t need the car for a couple of days (the other one is just back from the garage) I removed the radiator today for inspection. It was as fiddly as expected 😒 3 hours in, radiator removed and good news! The radiator is leaking, that hopefully rules out the ever fear-inducing HGF. So i've ordered the most reasonably priced radiator with a warranty (2 years) online for £65, quite pleasantly surprised at the value of this. I was less pleasantly surprised at the expense of the coolant however, £31.50 for 5 litres 😨 and as this system take almost 10L the coolant was only £2 cheaper than the radiator itself, good lord! I'd rather not do this again in a hurry, so I opted for the 'super long life' pink stuff rather than red. You can hopefully see that the leaks aren't terrible yet, but I hope this has been caught before anything serious happens. New radiator arrives in the next 2 days, so I'll probably fit it over the weekend, Sunday looks more likely The below is an excellent how to I found, for those that want to have a go themselves, the worst aprt so far was removing the pair of vertical bolts that hold the radiator into the 'cradle' that runs under this and the other large radiator (can't remember now if it's the A/C or hybrid). WHY, Lexus, WHY! There are holes in the bottom crossmember, but they don't line up with these bolts???

I don't think the 400h has eco mode, nor radar cruise! Does the eco mode rely more on the electric motors then rather than engine?

Will check the video out, thanks olliesgrandad. I've been trying to be light footed in both acceleration and deceleration to maximise the electric motor usage and regen, but every now and then I do need to hear that lovely mellow V6 growl, and the very shortly following shove into the back of the seat 😁 Filled up this evening, second tank in the car done (well, just over three quarters), 309.9 miles and 48.21L. Calculated 29mpg and indicated 30.3, getting better! I'm off on the 150 mile round trip to Bristol again tomorrow so will see how parsimonious I can be on that trip. It was great on the M5 rush hour traffic last week, the batttery did go down to a red-tinged 2 bars though - the lowest i'd seen it! Apart from occasionally charging the battery, the engine was hardly running at all for a good 30 mins. Any thougths on whether the cruise control is more or less economical than a human? I used it on and off last week and thought it a little keen on the throttle to maintain speed at times. Of course, I think I can do better. So far the car seems to have more or less completely won over the OH, who was very skeptical about changing the trusty Kia 1.4 diesel for a long time. It took a test drive to persuade the change, but I think I have scored a win with this RX 🙂 WIll be even better when the niggles are sorted.

Thanks for the key recommendations folks, ordered two new ones this morning. The code was partly worn away, but the ebay man (Jim) managed to used the pictures to decipher it. In other news, this morning was the first time i've experienced the wobbling rythmic jerk as flagged by the OH and mentioned in my first post. We only drove 5 m inutes to walk the dog, so when I got out I had a feel of all the wheels and brake disc hubs. All were cold except the rear passenger rotor, where the noise sounds like its coming from. So I think this is likely to be a sticky caliper that has cooked the wheel bearing, and will get that looked at. The whine noise seems variable, so will get around to changing the gearbox oil when the old car has gone, and monitor it. Loving the car after a few weeks of ownership, i've been reading the owners manual (sad, i know...) and am surprised about all the features on these cars, ours also appears to have every additional extra so far encountered, even though it is apparently an 'SE' rather than 'SE-L' model. I haven't yet cleaned it, I really should as it's covered in road salt and muck. MPG-wise, I take it upto Bristol every Tuesday and have gotten a best journey average of 36.8 mpg (at a consistent 60ish), with mostly motorway and A road travelling, hills seem to kill the mpg way more than speed does. However, the first tank was a mere 26.9 mpg, this was all town driving with a short (3 miles) hilly dual carriagway at 70mph.

Thanks for the recommendation Herbie, I may well use that seller. It all looks good. We've been out to walk the dog this morning, there was no juddering that the OH reported, but perhaps a slight wheel bearing rumble. We haven't used the parking brake so perhaps will use it one evening to test the following morning. What beautiful weather today! Perfect for car cleaning. Unfortunately I have 3 to do if that's the case...

Many thanks everyone for your reples, I've had a mooch through the service history and there is no evidence that the gearbox oil has been changed, so i will make that a priority, hopefully this weekend. I must say, i drove it yesterday and the whine seemed less intrusive than i remember, and also does sound a little like the faint electric motor sound. I've still yet to drive it from cold, so not sure about this juddering. How easy is it to replace keys on these? I imagine they need to be registered with the cars electric wizardry? The valet and the spare (now my key apparently!) are both falling to bits which i imagine is quite common. If the weather is any good this weekend, i may even clean it. Will be good to get acquainted with any imperfections so they can be monitored. Tom.

Thanks for the replies and thoughts everyone, I will look into the diff and CVT oil at the weekend. As mentioned, I have a feeling it had a lot of servicing done in 2018 for the 10 year/100k main dealer service - including the gearbox oil, but will check. It's a shame there isn't a gearbox dipstick like conventional automatics. I have read around about the gearbox oil, am I right in thinking that the dealers put more in than the position of the fill hole allows, necessitating ramps at the front to get the extra bit in? Could the issues be brake related? Again in 2018, it had both rear calipers replaced with reconditioned units due to binding/sticking sliders. I noticed that moving off after releasing the handbrake yesterday, the rear brakes stuck on, and disengaged with a thunk at about 10 mph. perhaps i'll have the rear wheels off and see if there is an issue here too. Is 18 months a realistic time frame (with city and/or little use) for the rear calipers to start seizing again? The OH didn't notice the jerking this morning, I didn't apply the handbrake when I parked it last night - but it could mean the OH wasn't paying attention rather than it not happening! Thanks, Tom

Just to clarify that the car has niggles rather than its owner! Although the case is arguable, i'm sure... Good evening, My partner and I have very recently changed our daily car to a 2007 RX 400h SE, it has 105000 miles and almost a full service history, with the 100k service done at a Lexus dealer at the end of 2018. It's great! It's quiet, comfortable and quick when required - a very welcome change from the previous Kia Venga 1,4CRDI, and although it is an older and higher mileage car, it is pretty much better in every way (except fuel consumption, i'm sure!). The car is in very good condition, it was on the cheaper end of the market and the test drive went beautifully. hence we bought it. However, there are a couple of niggles i'd like to sort, and hopefully get some advice on from the resident sages on here! I'm by no means a mechanic but have fiddled with classics and usually service our vehicles, so if the work is DIYable to the lazy and questionably capable then i'd have a go! Firstly, there is a definitely audible whine at light throttle that increases pitch with speed, it goes away when coasting and I don't think it's present at medium/full throttle. It also disappears in neutral, (but that is effectively coasting). Im quite sure it can be felt through the steering wheel and souynds/feels like it's from the front (but I know these things can be deceptive), here's hoping it's a wheel bearing and not a gearbox issue! I think the gearbox was serviced with the 100k service back in 2018, but haven't checked for leaks or fluid levels. At first I thought it was just a hybrid noise, but I think it is too intrusive. Secondly, and I haven't experienced this as it seems to only occur from cold, there is a jerking feel to the car in the first couple of minutes of driving, not a vibration, more like a rythmic jerk, or clunk. There was an advisory on the last 2 MOTs that the offside rear ARB pin/bush was worn but not resulting in excessive movement, I plan to resolve this advisory anyway but could this be releated? Or perhaps a more sinister drivetrain/gearbox issue. Perhaps worth noting, one of the rear tyres is new and the bordering illegal, heavens knows why they weren't replaced as a pair! At the beginning of 2019 it also had a hybrid health check, which it passed. I would very much appreciate your thoughts on these points, and general 400h comments! Being new to the fold it will take a little while to get to know the car, it's features and foibles, there are many after all! I thought the car was an SE-L, however this is registered as an SE, but has DVD screens in the seats and a sunroof. I will see if I can get a photo of it, the advert ones were not great and it's so dark all the time just now. Tom.