Aussie E53 4x4 and Brake??? warning light

[andrewwynn]

155F


162F

Infuriating.

[Spartan]

@andrewwynn, So have you had your temp insrument modified as EOD has mentioned?

[andrewwynn]

No but I reality wamt to. The non gauge is a horrible thing.

Three position:

1) not warm
2) quite possibly warm no guarante
3) likely just destroyed your head

You get no warning whatsoever of overheating about to happen.

The needle will point to noon at a temp too low to achieve closed loop. I drove for months without closed loop until fall came and I couldn't get cabin heat.

[Spartan]

"The needle will point to noon at a temp too low to achieve closed loop. I drove for months without closed loop until fall came and I couldn't get cabin heat."


Hmm, I can relate to that, I get 1/4 on cool days and half on warm to hot days. It does have a pre-heater,... a bit of a laugh in Australia and I do not think it has ever been used! , but I do get cabin warmth at half temp which it will get too even on cold days. I guess that is the benefit of the diesel, they will get hot, just how hot is the worry.


I guess I will do some searching for this elusive guage fix, but there are other ways, I have an Android HU and I can plug a OBD II in and get info from that on realtime temps including oil and trans.

[workingonit]

Originally Posted by Spartan

...I guess I will do some searching for this elusive guage fix, but there are other ways, I have an Android HU and I can plug a OBD II in and get info from that on realtime temps including oil and trans.

According to several people on this forum, you should have possibly the easiest way to workaround the temp gauge's inaccuracies, by just using hidden OBC data via your Android H/U. But, without that type of device, I'm stuck in my quest https://xoutpost.com/bmw-sav-forums/...le-gauges.html to see my desired parameters on a gauge or display, a search prolonged due to several delays:

• 1) a water-soaked floor (fixed...sealed the sunroof and windshield),
• 2) recurrent P0171 & P0174 codes (possibly? fixed, by upgrading and resealing the DISA valve), and
• 3) now trying to solve a new code's appearance https://xoutpost.com/1214363-post5.html (P0365, by using Foxwell freeze frame data, and live data on Torque Pro)

.

I don't have the computer skills, nor equipment to reprogram the temperature gauge on the X5, and don't have an Android H/U to access the OBC, yet, so I'm making do with the three android apps I have (four now, as I've just loaded Deep OBD on my devices, but not tried).

I've tested with a USB K-line adapter and two different dongles (OBDLink LX and BAFX), but so far my favorite is the Torque Pro screen shown here

with a screenshot showing the coolant temp (a must have), and fuel trims (looking for the codes mentioned above). I haven't tried the K-line adapter/Bimmertool app combo with the latest code, nor the Deep OBD app at all (it should work, hooked-up via the K-line adapter). Deep OBD promises to access data via K-line, so I'll soon try it. Whenever I get the Resler I-bus adapter, the I-bus app, and tap into the I-bus wire in the dash, then I might have one or more better solutions to my quest.

[Overboost]

Originally Posted by Spartan

I guess I will do some searching for this elusive guage fix, but there are other ways, I have an Android HU and I can plug a OBD II in and get info from that on realtime temps including oil and trans.

This is the writeup I did for the temp gauge modification in a high cluster. I have done this mod to both my E53 and my E46. This definitely helped me when my water pump impeller broke some of the vanes off. I could watch the gauge rising when it got above my 85C-95C buffer.

https://xoutpost.com/1121333-post23.html

[Spartan]

Originally Posted by Overboost

This is the writeup I did for the temp gauge modification in a high cluster. I have done this mod to both my E53 and my E46. This definitely helped me when my water pump impeller broke some of the vanes off. I could watch the gauge rising when it got above my 85C-95C buffer.

https://xoutpost.com/1121333-post23.html

Thank very much good sir. I shall peruse and try to improve the factory fittings.

[andrewwynn]

Have you checked the brake fluid level? If it's close to the edge you will get intermittent brake light.

[Spartan]

Hey thanks for the heads up, I will check to be sure. The book does say if the level is low this may come on...


The yellow light there is actually DBC "Dynamic Brake Control" warning, It is surrounded with similar shaped lights on either side for brakes, but this one seems to be affected by any or all symptoms... and of course the 4x4 when on permanently and not flashing indicates the DSC "Dynamic Stability Control". This you are supposed to be able to turn on and off at the switch, although I have never been successful on any of my cars at turning it off.

After reading the book, a lot of diagnostics online that other people have experienced with some similar issues, the only consistent I have is non consistency.

I never have the EML light or residual codes, No DDE errors at any time nor light to register any problems, no Engine light and no AT light or codes. Everyone that has experienced their engine stall has codes that indicate one of these problems.

So, foolishly, the one thing I failed to look at was the brake fluid it was a case of car drives and car stops, Just came out from a full service with receipts etc if I had problems (4 months ago), so I was dumbassed enough to trust the workshop and the guy who sold me the car has all his vehicles serviced there. Looks like tomorrow be a working on car day anyway.


Thanks for persevering with Ideas AW

[Spartan]

Sorry for the delay in writing this report back. No more fault codes had been logged even though the lights, coughing and farting while trying o drive was being attempted occurred randomly.

I have been using Lucas Upper cylinder lubricant and diesel injector cleaner, which seems to make it run longer for a each period of time. This got me to thinking about similar problems I had on my classic bikes with Amal carburettors. No filters used and the crap would get into the carby and block a jet or port. This was also suggested by a X5 4.8 owner here to check as well. The Fuel Filter. There was some issue with mine as the V.I.N. explains a different engine and filter to what is actually fitted, suggesting I had the E70 engine and drive train. So, filter arrives, car up and covers off...wrong filter. They exchanged it without any freight cost and refunded the difference. The fuel that came out of the old filter was charcoal grey and full of little bits of black grit type of substance. With the new filter, I have done a thousand Km without any problemswith speeds from 40km/h to 110km/h I'm still using the Lucas at each tank of fuel and the car is just getting stronger and stronger.


Thank you all for your help, I have checked each of the suggested areas and it has given me leads to other minor issues before they become big ones.
Jeff