STEP BY STEP INSTRUCTIONS NEEDED.

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Southernboy
Joined: Thu 07 Oct, 2010 13:39
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  Z3 roadster 3.0i
Location: Johannesburg

STEP BY STEP INSTRUCTIONS NEEDED.

Post by Southernboy » Wed 01 Jan, 2014 06:38

Please can some one provide me with step by step instructions for the following problem.
The car is a 2001 3.0 Z3. The seller has fitted a new instrument cluster, which does not reflect the true / correct mileage on the display. From what I understand, this can be corrected fairly simply via the cluster???
I need detailed step by step instructions, as the seller is some 600kms from me, and I will need to send the details to him so that he can perform the corrective process.
You can email it to me directly to:- searchinc@worldonline.co.za
Cheers guys... :wink:
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Captain
Joined: Thu 28 Jun, 2012 07:43
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  Z3 roadster 2.8
Location: Durban

Re: STEP BY STEP INSTRUCTIONS NEEDED.

Post by Captain » Wed 01 Jan, 2014 07:09

Find a dodgy used car dealer, these guys are pros at altering the mileage, they refer to it as giving the car a haircut ;)
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Southernboy
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  Z3 roadster 3.0i
Location: Johannesburg

Re: STEP BY STEP INSTRUCTIONS NEEDED.

Post by Southernboy » Wed 01 Jan, 2014 07:13

I just sms'd you Hilton...I had a look in the Z3 Knowledgebase, there seems to be some info there, but I'm not clear about the specific procedure...seems the OBC keeps track of the actual mileage, and a "new" cluster display can be corrected to reflect that true mileage... :wink:
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Robert T
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  Z3 roadster 1.9
Location: Cheshire

Re: STEP BY STEP INSTRUCTIONS NEEDED.

Post by Robert T » Wed 01 Jan, 2014 10:43

The OBC is not involved in this - the mileage is held in the ECU and cluster - if the two don't agree, the tamper dot should be illuminated. I'm afraid I don't know the procedure to update the mileage.

Edit: just checked the KB - the odometer self-test mode can be used to do it on the earlier cluster, but unfortunately a 2001 car will be the later type it is not documented. See http://www.zroadster.net/forum/viewtopic.php?t=20201

Cheers R.

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Dave L2
Joined: Tue 25 Jul, 2006 11:34
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  Z3 roadster 3.0i
Location: North Essex

Re: STEP BY STEP INSTRUCTIONS NEEDED.

Post by Dave L2 » Wed 01 Jan, 2014 11:45

This is all from Bentley's and is completely at your own risk, I haven't tried this I'm just copying it from the manual. But it does appear that you need the coding plug from the old cluster to sort this out legitimately.

Coding plug, removing and installing
The coding plug stores one of two records of the vehicle mileage, as well as additional vehicle information.
  • Remove instrument cluster (See my Dash Removal KB article for detail).
  • Break open plastic retainer in back of instrument cluster and remove coding plug.
  • Install coding plug and new retainer. Reinstall Instrument cluster.
  • Synchronise stored vehicle mileage and service information. See Instrument cluster mileage resetting (from 9/1998)
Instrument cluster mileage resetting (from 9/1998)
Vehicle mileage and service interval information are stored in an EEPROM on the instrument cluster main circuit board and also in the coding plug. When the original coding plug is reinstalled in a new cluster the mileage information stored in the new main circuit board differs from actual vehicle mileage stored in the coding plug. This causes on odometer anti-tamper warning dot to light up in the cluster.

Use Test Function 16, described below, to bring the two mileage figures into agreement and to extinguish the anti-tamper dot. Normal data exchange between the two information storage sites is restored.
  • Use test 19 to unlock test functions - See Instrument cluster tests, unlocking (from 9/1998)
  • Use odometer reset button to scroll to test 16.
  • Display XXXXXX I_16.0 indicates that mileage in cluster circuit board EEPROM is lower than mileage stored in coding plug.
  • Display XXXXXX E_16.0 indicates that mileage in coding plug is lower than mileage stored in cluster circuit board.
  • Press and hold odometer reset button for 4 seconds.
  • Display COPY _16.1 overwrites lower mileage with higher mileage and extinguishes anti-manipulation warning dot.
NOTE:
  • Service interval information is also transferred by this procedure.
  • If the battery is disconnected before 2 miles have been accumulated on the cluster, repeat test 16 to cancel anti-tamper warning.

Instrument cluster tests, unlocking (from 9/1998)
  • Press and hold trip odometer reset button while switching ignition key to first detent (RADIO position). tESt appears in the display.
  • Press reset button to scroll through test functions until tESt 19 L ON is displayed.
  • Display switches from L ON(Lock ON) to L OFF(Lock OFF) every second.
  • Press reset button immediately when it changes to L OFF
  • Proceed to next test (Example: test 16 odometer reset)
NOTE: Cluster tests are automatically locked when exiting test functions.

Hope this helps.
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Southernboy
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  Z3 roadster 3.0i
Location: Johannesburg

Re: STEP BY STEP INSTRUCTIONS NEEDED.

Post by Southernboy » Wed 01 Jan, 2014 12:11

Thanks guys...I think that'll sort it. .. :wink:
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Robert T
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  Z3 roadster 1.9
Location: Cheshire

Re: STEP BY STEP INSTRUCTIONS NEEDED.

Post by Robert T » Wed 01 Jan, 2014 14:04

Thanks for that Dave - I'll update the KB article as necessary.

Cheers R.
Arctic Silver '99 Z3 1.9 & Black '59 Frogeye 1275cc
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Dave L2
Joined: Tue 25 Jul, 2006 11:34
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  Z3 roadster 3.0i
Location: North Essex

Re: STEP BY STEP INSTRUCTIONS NEEDED.

Post by Dave L2 » Wed 01 Jan, 2014 15:10

No probs. Do you want the pre 9/98 info just for completeness?

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Robert T
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  Z3 roadster 1.9
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Re: STEP BY STEP INSTRUCTIONS NEEDED.

Post by Robert T » Wed 01 Jan, 2014 15:20

Already got it, thanks Dave. That's what I was quoting from above. I've updated the article with your info - thank you.

Cheers R.
Arctic Silver '99 Z3 1.9 & Black '59 Frogeye 1275cc
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Dave L2
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  Z3 roadster 3.0i
Location: North Essex

Re: STEP BY STEP INSTRUCTIONS NEEDED.

Post by Dave L2 » Wed 01 Jan, 2014 17:42

That'll teach me to read every post in a thread.

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Southernboy
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  Z3 roadster 3.0i
Location: Johannesburg

Re: STEP BY STEP INSTRUCTIONS NEEDED.

Post by Southernboy » Wed 01 Jan, 2014 18:23

Must thank you Dave & Robert...I had a good read through the Bentleys after Dave's reference...It's all pretty straight forward really... :wink:
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motco
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  Z3 roadster 2.2i

Re: STEP BY STEP INSTRUCTIONS NEEDED.

Post by motco » Wed 18 Feb, 2015 16:40

I tried to clear my odometer EEP_1 message problem today using the step by step instructions kindly provided by Robert T originally in April 2009, modified January 2014. However my display won't go beyond test 1.7. It steps through 1.0 1.1.1.2 etc,. but reverts to 1.0 when the numbers reach 1.7. The odd message EEP_1 comes and goes but isn't cleared by any playing with this function. Does anyone know how to get beyond test 1.7 please? :?:

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