Thackeray

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About Thackeray

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  • First Name
    William
  • Lexus Model
    IS300h
  • Year of Lexus
    2014
  • UK/Ireland Location
    Greater London

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  1. I couldn't actually hear much on the video. Are you sure the noise is only audible when braking and it's not something to do with the sound of the electric motors? I expect you know that the IS300h has no reverse gear as such (no gears, at all, really). Instead reverse is achieved by using the electric motors. Maybe you could try reversing with EV mode turned on to make sure the engine isn't running as you reverse and you can hear any other noises more distinctly. In principle, when you apply the brakes the car switches from propelling the car with the electric motors to generating electricity as you brake. I assume this happens in reverse the same as when going forwards. There's probably a change in noise as the load is applied to the motor-generators. There's a kind of whistle you hear as a Toyota/Lexus hybrid car slows down for a junction that's easy to recognise when you're familiar with it. But it's more of a whistle than a clicking noise. One of the youtube reviews of the IS300h mentions the whistle but I can't find that particular review at the moment.
  2. Thackeray

    Amazed with the 300H

    It's good to hear that I'm not the only one who thinks this. I have to say that I can't remember a single occasion, over many years of driving in many different cars, where I've accelerated on a normal road 0-60 at full throttle. As it's a feature I never use, I'm not interested in how long it takes. I'm not sure that many other people are doing it either. I certainly never see them. Maybe I need to go out at 2am to see the people who are interested in this feature. So why car makers and reviewers keep emphasising this virtually unused feature is a mystery. On the other hand, I join motorways at, say, 40 mph on the slip road and it's nice to get up to 70 as quickly as possible, particularly if there's heavy traffic going at 70 mph in the left lane. Being able to do this rapidly is a far more useful feature than being able to get from 0-60 two-tenths of a second faster than in another model. Agree with this too. What I really like about the transmission is being able to cruise at almost any speed with the engine generally turning at around 1200 rpm.
  3. If you're saying the pads themselves are worn down to 2mm, (not a gap between pad and disc of 2mm) that seems surprising unless the car has had a lot of hard braking. The front ones start at 12mm when new and the rear ones at 10mm. On a conventional car, you might be expecting to replace the pads at this mileage or sooner. On a hybrid, it wouldn't be surprising to find the pads with only a quarter of that wear, from what I've read. So maybe previous drivers have done a lot of hard braking. Or maybe there's another issue causing excessive wear.
  4. Something I discovered a few months ago is that you can disable the Auto function completely. I thought it was broken for a few weeks, as when I pressed the Auto button the light didn't come on and the wipers didn't start when it was raining. It wasn't a major problem as I could still turn the wipers on manually. I was going to get it looked at when it went in for a service but after a few weeks I thought I would look it up in the manual. I found that if you press and hold the Auto button until the Auto light stops flashing, the Auto function doesn't work at all. Instead, you can operate the wipers manually, including the variable speed intermittent mode. So it wasn't broken. I had simply pressed the Auto button for too long and didn't notice the light flashing. You do the same again when you want to turn on the Auto function again. This probably isn't relevant to what's happening on your car. But you might be right in saying that pressing the Auto button on and off is causing a problem, perhaps by confusing the software.
  5. If the control is the same as on the 2014 IS300h, something should always happen when you push the lever down to the first position. I haven't found a GS manual but this is what the IS manual says about the wiper controls. (Sorry if it's different on the GS!) If the GS300h is the same, then the problem seems to be something other than the sensor, as if the wipers are off (presumably even in auto mode) then you should get low-speed operation when you push the lever down to the first position.
  6. It sounded as though you were talking about the gap between the pad and the disc. Is that what you meant? A lot of the discussion seems to assume you meant the pads were worn so that only 1.5mm and 2.5mm of pad material was left. That sounds very low if it's the thickness of the pad. My similar aged car has around 10mm left, which is only around 20 pct worn. The pads shouldn't be wearing too fast on a hybrid because a lot of the braking is done by the hybrid regeneration rather than the pads. So just to clarify, did you mean the pads are worn down to 1.5mm or that the gap between the disc and the pad is 1.5mm?
  7. You say the alignment is out, too. It sounds from your description as though you're permanently holding it against veering to the left. I had something like that once on a previous car and it's really irritating when driving. And it may also be wearing the tyres unevenly. I was told by an MOT tester to find a garage with a Hunter machine to get the alignment done. I think it cost about £80 and was well worth while. After it was done the car was perfectly poised and balanced and the steering wheel pointed straight ahead. Maybe this is a separate problem to your possible brake issue or maybe it's related. Either way the Hunter machines work really well in my experience and it's well worth finding a garage that has one.
  8. When the weather started to warm up two or three weeks ago, I began to hear creaking from the back of my IS300h. I couldn't tell where it was coming from but it sounded like the sort of body flexing you might get in an old convertible. More of a metallic creak than anything else. I hadn't yet got around to getting someone to ride in the back of the car to identify where it was coming from. But I remembered reading this thread a while ago and eventually I began to wonder if it could be the rear door seals, even though the sound was more like creaking metal. I hadn't got any silicone spray and I've never seen where you can get "Nextzett Gummi Pflege Flege Car Rubber Stick Door Restorer". I also thought using detergent might not be good for the rubber. So I just wiped the rubber door seals with a damp cloth. A couple of small areas felt a bit sticky but they only needed the damp cloth to clean them up. Result? The creaking has completely stopped. So, many thanks to all who described the creaking door seals. Two or three minutes with a damp cloth has saved me from annoying and expensive trips to a dealer.
  9. I'm still coming across useful shortcuts I didn't know about and maybe aren't in the manual. Today I noticed this: I never knew that. Many thanks to "route66" for the info. Double-press brings up the Sat Nav warning message (it says "Don't rely on the Sat Nav" or something like that). I went a step further and found that triple-press skips the warning message and goes straight to the map. Very useful. I tried this on the Audio button, too. I found double-press goes straight to the choice of AM, FM or DAB when the radio is selected. That might be useful too. I didn't test it with another audio input. Here's an obscure setting that took me a while to discover. There's an aircon setting for use when there's a lot of pollen about. Go to the main screen display for the air con and choose the three dots at the bottom right for the Option screen. There are three options: A/C, Dual and a third option with a picture of a seated person and an arrow pointing at the person's face - the arrow seems to be passing through what I assume is a picture of the pollen filter. I only discovered this because I noticed that older Lexuses have a dedicated button for this function. The button has disappeared in the later cars but the function is still there. Are there any other useful tips or shortcuts that are not obvious at first glance?
  10. Here's a review I've just come across. This one complains that the car is too quiet! For me that's one of the main strengths of the car.
  11. Thackeray

    MPG on IS 300h etc.

    The temperature of 22C probably helped, too - no heating needed and not too much air conditioning. If this had been my car the indicated 60.8 would have meant a real 55 or so, which is still pretty good for a 2.5 litre petrol engine. Does anyone else compare real mpg with indicated mpg? I'd be interested to know if a 9-10% discrepancy is standard on these cars or is mine an exception? A small amount of the discrepancy comes from tyres about half-worn. (That reduces the tyre size by nearly a centimetre and results in an overestimate of distance travelled.) But that probably doesn't make a great deal of difference.
  12. Thackeray

    MPG on IS 300h etc.

    60 mpg is definitely optimistic. The 16 inch wheels on the SE are supposed to get better mpg than the larger wheels on other models but even they won't get 60 mpg routinely. An average seems to be around 44 mpg, according to spritmonitor.de fuel consumption site. In a year's use I did 42.1 mpg, measured from tank fill-up to fill-up. The dashboard display is around 10 pct optimistic and showed an average of 46.2 for each tankful over the year. The best was 51.1 on a tank that included long motorway trips. The dashboard claimed 55.1. Over the winter, when I was only doing four-mile, slow town-driving trips in sub-zero temperatures, with the engine started from cold each time, lights on, heater on, heated seats on, wipers on, air conditioning on, I got 30.7 (the dashboard showed 33.5 for that tankful.) Although it does well around town in general, helped by the energy regeneration, there's a common misunderstanding that you're saving money by using the electric motors only. All the electricity is second-hand energy, as it was originally generated by the petrol engine, either directly when the engine is running, or indirectly when it's being regenerated from braking, (using the kinetic energy that the engine created.) It's the efficiency of the engine that will give high mpg figures for a 2.5 litre. So cruising on motorways can be quite efficient, as shown by the figures above. You're fortunate to get the car as the weather warms up - that helps keep the fuel consumption down. But expect the mpg numbers to fall away from around November unless you only do motorway driving. Hope you enjoy the car!
  13. Thackeray

    Media player MP3's

    Turn off "Random/Shuffle" in the USB menu.
  14. That's interesting. Thanks for the explanation.
  15. Many thanks for all the explanations. I think I'm a bit clearer on what is going on here. I was going to say that it's a bit misleading of Lexus to say that the IS300h has a compression ratio of 13:1. From the explanations here, it sounded as if they should be saying the expansion ratio (not the compression ratio) is 13:1. And then I came across this site which has some graphics of the issues. Effectively, they seem to be saying the same thing as I was thinking - namely that Lexus should call this the expansion ratio. But then on the other hand, do Lexus technical departments really not know the difference between the compression ratio and the expansion ratio? It's all a bit puzzling.