I noticed that my A/C on the 430 wasn't blowing cold recently when we had that warm spell. The A/C was regassed just a couple of months ago by Lexus when I had it serviced - not sure if they test functionality at that time or not.
Was going to get them to have a look, but then had a weird experience today where the A/C selection was just greyed out on the LCD screen. Couldn't enable or disable it and the temperature controls didn't function. After a short while though they sprung back into life. Still no cold air, but certainly something odd going on. Anyone come across anything similar? Suggestions for what to check before I get it looked at?
Hey Guys, (and Gals)
I'm in love with my IS250, and have had a bit of a disappointment this past Saturday.
AC Compressor is frozen. if I try to turn it on when stationary the car stalls, if I try to turn it on when driving at speed, I Can hear the belt slipping on what I think is the compressor pulley. I'm gutted :(
Anyway, looking for suggestions from fellow IS250 owners. from what I've read, I'm probably going to need a compressor, a system flush, and a condenser/drier/evaporatior?
@Linas.P I read your thread where you replaced your compressor, did you replace the condenser/drier/evaporator? has it been OK?
Mine was working fine, up until it died... :(
Worst case scenario I think it will be very close to a grand to get it fixed :(
Okay, so my Lexis is200 from 2001, is blowing warm air instead of cold air. When we first got the car we tried recharged it because we had the same issue and my husband says that we couldn't get any coolant in it because there was too much pressure. What is my next step, this is going on our 3rd with no AC, the heater works just fine, but the air doesn't get cold.
Hi fellow enthusiasts, I just ripped my spare unit. I am going to change some bulbs and LED lamps. I am wondering if someone can help me out here and confirm. I want to leave it as original as possible, new bulbs LEDs for old ones that is.
I did some research and found out:
Radio LCD back light IL901 + IL902 = micro lamp 2x (8V / 0,1A / 0,8W) - soldered - bulb head is about 4mm x 9mm - clear with green rubber cap
that would be the same micro bulb as in a
GS430 - 2000 - Radio LCD back light IL951 + IL952 = micro lamp (8V 100mA)
Radio "key board" back light for the buttons = micro lamp 14x (8V / 0,06A / 0,5W) - soldered - bulb head is about 3mm x 5mm - clear with green rubber cap
The 2 bulbs for the Radio LCD back light I've already soldered out.
I did not know until now that the on/off button has its own micro bulb - must be getting real hot in there because in both units I have that same micro bulb is shot.
AC / Heater control LCD
55900B BULB, AIR CONDITIONER CONTROL....LCD back light!
OEM number: 84999-60450 (12V / 1.2W / 0,1A / 1/4 socket / 5mmx10mm- 3x - LCD screen - back light
OEM number: 84999-60460 (14V / 1.82W / 0,13A / 1/4 socket / 4mmx09mm- 5x - AC control buttons - back light
AC/Heater - key board - control lights for the buttons - clear LED lamps - green and orange - Luminous Intensity 30mcd-40mcd
Button/switch - LEDs: 5x green - 3mm - 1.8V??? - soldered - I used 2,2V / 0,02A / 40mcd
2x orange - 3mm - 1,8V??? - soldered - I used 2,1V / 0,02A / 29mcd
Not micro bulb! LED lamps!!!
Bottom line - heat and age is the CULPRIT.
My car just developed interesting fault. Surely expensive to fix, but interesting in a way to investigate and nail the real cause.
So to start with - few days ago (like Tuesday this week) my A/C started making some noise ... like squeakyish/grinding noise, but it was intermittent (happened like 2-3 times altogether). I had a service coming up 2 days later so didn't really bothered to investigate, nor had an opportunity. Thought, "if there was something obvious Lexus service will pick it up" and if not I will take a look over weekend.
So Lexus Woodford did service an MOT, got all green except one amber. They said my drilled rotors are far too lavish, hence they put amber to accompany them (to clarify it is amber for "non-genuine front rotors and pads", they are Mintex drilled discs with brembo OE-equivalent low dust pads - will post new thread in Modifications forum). The rest are all green including "Aircon / heating / ventilation" as below:
On my way home from the dealer, I have realised my windows are starting to steam-up and the air from A/C is getting hot... clicked on "Windows Defogging" and the realised that A/C light is flashing > stopped by traffic lights and clicked "Off" and "Windows Defogging" again to restart A/C. This resulted in the weirdest thing ever in any car I have owned > the engine RPM started jumping and when I have clicked on "Off" again the engine cut-off as well (see video below). You can notice A/C light is solid while RPM is jumping.
From under the bonnet it looks like compressor clutch tries to engage unsuccessfully or that compressor is actually completely stuck. Actually, I can see little sparks coming out of the pulley (see video below - sorry it is bit dirty ... Lexus panels does great job keeping all that dirt and rust inside). It only happens on idle, if I am cruising at speed then A/C light starts flashing straight away.
Now based on the fault description I have found that this fault can be caused by faulty compressor clutch coil. I do believe this is not the case, because faulty coil would result in flashing A/C light and as well would fail to engage compressor, but in my case it seems it is trying to engage compressor and after multiple failures gives up and starts flashing. If I drive at speed trying to turn A/C results in flashing A/C light straight away - no impact to RPM etc.
So my second guess would be that compressor itself is mechanically faulty/stuck and engaging clutch causes stress to the belt and RPM starts dropping. This would be sad news.. as replacing compressor would cost 10x more than just replacing coil.
Any other thoughts? As well wouldn't you expect Lexus dealer to pick up such faults? I am not joking .. it happened 3,5 miles away from dealer after “All Green verdict”...
Any help or opinion would be greatly appreciated, thanks