Can anyone tell me if the procedure for reading fault codes as described in the FAQ is applicable to a 93 3.8 UK M5 ?
I've followed the "Ignition on, floor / release throttle 5 times" routine, and I get nothing. Not even an OK code.
I'm not getting any warning codes / check engine lights at all under normal conditions, but the car's currently powered by around 100 kangeroos instead of the more desirable 340 horses. Misfire doesn't come close to describing it.
Any thoughts on fault codes or ideas as to my problem. I've read all the 'fishbite' stuff I can find, but this feels more like a shoal of pirahnas than one fish working alone !
I have also tried the "Ignition on, floor / release throttle 5 times" routine with my M5 -95! Allways without success. I think it is only possible on the USA-cars!
Since starting this thread I've replaced the plugs, which has improved the symptoms quite a lot, but not totally. Surely if I had a faulty coil pack or similar, I'd get some kind of error code ?
Originally posted by Kurt Ramsden Can anyone tell me if the procedure for reading fault codes as described in the FAQ is applicable to a 93 3.8 UK M5 ?
If you go to your local Bosch specialist, they will read out the codes on computer, in less than 5 minutes.. cant cost more than max ½hour.
The software you need is unfortunately not available any longer on internet!
With a PC, an interface which you build yourselves and the software you can read and reset fault codes in many functions of your car ( DME/DDE, KOMBI, AIRBAG, ABS/ASC, BC/MID, DWA, ZKE/ZVM, EGS, och HLK). There is also a function to reset the SERVICE INTERVAL.
I have tried it on my M5 -95 and from what I can se everything works except for the service interval return and the DWA where I can't read the fault codes (but I can see if there are fault) but I can reset them. As I have a manual gearbox I can't use the EGS check (electronic gearbox control).
Kurt,
get yourself into Teeside auto tech, they have kit to read codes, cant remember if it was them you had used or the guy in stockton?? anyway, I used them to find code in a gearbox fault I had cant remember cost but I am sure it was not much.
01642-617626
Thanks guys - I'll let you know if I find anything. Jimmy - I used John Hind in Stockton for my service, but I didn't have the fault at that stage. I don't think he has the code reading kit.
Push OBC buttons 1000 and 10 together. You will see the word Test. By pressing a combination of the 10 and 1's you can enter Test Codes from 1 to 21. After entering the number press R/S and you will get a continuous display of the test function. To cancel, just press any of the OBC function keys.
Codes
Test Number Description
1 Display Test (all LCDs and LEDs activate)
2 Current Consumption in litres / 100 km
3 Current Consumption in litres / hour
4 Average consumption (used in calculating range)
5 Current Range
6 Not used (this function is active on some, but not sure of the purpose)
7 Fuel Remaining in Tank (litres)
8 Current speed (km/h)
9 System Voltage at Terminal R
10 Country / Language
11 Units / am.pm
12 Average speed (km/h) for calculating ETA
13 ETA
14 Date of software / mask of OBC
15 Production Diagnosis
16 Production Diagnosis
17 Display Vehicle Specific Data
18 Alarm Changeover (continuous vs. intermittent)
19 Lock / Unlock all functions (Sum of month and date to unlock or lock)
20 Correction Factor for OBC Fuel Consumption
21 Reset all defect codes, date and time
How to lock and unlock the OBC
· To unlock the OBC, first press the date key, and add the month and day together. So, if the date is displayed as "0704", the result is "11"
· Go to test 19 by pressing the 1000 and 10 buttons together, and then typing in the test number (19)
· You will see the word "LOCK" displayed. Type in the result from step 1 above, and press S/R
· If you display test 19 again, it will now display "FREI", indicating the system is now unlocked.
· To lock the system again, go to test 19, and press the little button on the top left hand corner of the OBC (F/C).
How to correct your fuel consumption readout
If your car is anything like mine, the fuel consumption readout will be way out. But it can be adjusted! First, you need to measure your fuel consumption as accurately as possible, by filling up the tank, driving until nearly empty, filling again, and figuring out your fuel consumption, in either litres / 100 kms, or MPG. At this point, also note what the fuel consumption as reported by the OBC is. You need both figures to make the adjustment.
Once you have that accurate figure, follow the following procedure:
· Unlock the OBC as described above
· Go to test 20. This is the existing fuel consumption constant used in the calculation.
· Find the ratio between the old consumption reading, and the actual consumption reading:
· For litres per 100kms, this is the actual consumption divided by the reported consumption
· For MPG, it is the opposite. Ie. It is the reported conumption divided by the actual consumption
· Now multiply that ratio with the existing fuel consumption constant, the result is the new constant.
· Simply type in the new constant, and press S/R
NOTE: I have found that for some reason, if I don't drive my car for a day or two, the constant will reset back to 1000. I don't know why that is. If anyone does, please let me know!
DME Fault Codes ?
Can anyone tell me if the procedure for reading fault codes as described in the FAQ is applicable to a 93 3.8 UK M5 ?
@ Kurt
Linear Mode
