Rover 75 / MG ZT/T Rover 75/MGZT Service Interval Reset *At your own risk* - Page 3 - MG-Rover.org Forums
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post #41 of 266 (permalink) Old 23-06-2005, 16:18
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Oooo! This information is going to prove very useful when I start getting the car serviced by an independent!

Cheers guys!
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post #42 of 266 (permalink) Old 24-06-2005, 03:58
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Quote:
Originally Posted by foxyloxy
IF Insp. is 8 - 25 sec.

then how can it also be

Oil Service and Inspection 8 - 25 sec?

Confused.

Cheers
Steve
It is just a toggle action - think of it like a seesaw one, or the other, or one and the other - until you get the right combination - personnaly I travel 15000ml/25000km a year so every official service is an oil service, but then I also change the oil every 6mts 7500ml/12000km myself - I'd rather spend $60AUD/25GBP for a full synthetic oil as well -- call me cautious.

Last edited by Brickwalls; 01-07-2005 at 05:54.
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post #43 of 266 (permalink) Old 26-06-2005, 11:00
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just did the wire from pin 4 to pin 8 and it worked fine on my uncles car, which is a rover 75 cdt con Y reg 2001.

at least i think it worked fine, after doing it, it came up to 15000 inspection on the dash. Is this correct, has it worked properly?

Raj
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post #44 of 266 (permalink) Old 03-07-2005, 13:11
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It took a few goes but I've reset mine - KV6 2 litre auto, 2000 on a W. Paperclip is definitely best, but you need to push it right in to get a connection.

Quick fiddle with the drivers seat pad sensor underneath while I was at it, now no more warning lights!
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post #45 of 266 (permalink) Old 12-07-2005, 14:32
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Works for a lhd 2000 diesel 75 as well. I was 500 km past the oil service and had it changed locally. Only afterwards did the bloke tell me he couldn't reset the thingy. It now reads 24500 to the next main service.

BTW you seem to be able to see which pins can be used and which not by if silver metal is visible or not. Since the steering wheel is on the wrong side I was worried that I had a mirror image or something but as far as I could see there was only one that could be 4 and another 8 because the others were just black plastic.
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post #46 of 266 (permalink) Old 12-07-2005, 15:53
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Good tip there Juan, cheers !
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post #47 of 266 (permalink) Old 11-09-2005, 18:49
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Mg Zt 260

Anyone any idea if this will work on the zt 260 ( ford V8 )

david
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post #48 of 266 (permalink) Old 11-09-2005, 19:11
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Don't see why not!
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post #49 of 266 (permalink) Old 16-09-2005, 12:36
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Talking Works on 54 reg

This works on the rover 75 contemporary 54 reg many thanks for the tip Guys

Keith75
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post #50 of 266 (permalink) Old 18-09-2005, 10:30
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Baz 75

Worked on my 02 75 diesel. Mileage was 1500 past . Took 3 attempts then reset to 15000. Thanks to all.
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post #51 of 266 (permalink) Old 21-09-2005, 19:33
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GREAT ! Worked first time on my 2001 CDT,shorted pin 8 to door stay ,pin numbers are marked at row ends .
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post #52 of 266 (permalink) Old 03-10-2005, 19:08
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Thumbs down

"The service interval can only be reset within range of the service interval (e.g. 1000 miles)."


does this mean if you go 1000 miles past the interval this method will not work ? or am i reading it wrong (the 75 i have just bought indicates its 7000 past service althought has been serviced at a garage who did not do a reset)
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post #53 of 266 (permalink) Old 03-10-2005, 19:51
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Service indicator reset

Quote:
Originally Posted by jvs
Have read Rover 75 threads on this subject and note that shorting pins 4 and 8 on the diagnostic socket is said to reset the indicator. Checking the wiring diagrams, pin 4 is earth, pin 8 goes to the instrument pack (skt c0233 pin 5) and ABS ECU (skt c0501 pin 11). Although this method was suggested in the threads, nobody appears to have reported success (one or two said it did nothing!). Can anyone supply confirmation before I take this - possibly risky - step?
I tried it today and it definately works. I have a 2 year old 2.5 Rover 75. The Diognostic socket is by the drivers right knee, under the dash, it is in full view, no need to siturb any trim. Pin 8 is bottom left pin, pin 4 is 4th pin from the right. I used two paper clips, one straight, one with an angle. Turn the ignition to step 2 and touch the two paper clips together for about 20secs. Turn off the ignition and then turn it on again. The reading should read 'Oil Service 15,000'
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post #54 of 266 (permalink) Old 03-10-2005, 22:13
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magy - it means you must do over 1000 miles from the last reset point, before you can reset it again.
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post #55 of 266 (permalink) Old 15-10-2005, 18:40
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Is this correct?

As you say, valuable stuff. I'm putting together a dossier of Know-Hows for when my warranty expires. ATM I have to pay very high servicing charges to guarrantee my Rover warranty, but will revert to DIY after that.

I've studied all the posts in this thread and now hopefully understand how the resets are done. I wonder if I sussed why some people haven't got it to work when others have. Logically all Rover 75 models work the same in this, so it must be the way it's done that's important. Anyway, I'd be grateful if someone who really understands it will check through my notes? Here's what I've got so far.

The trick is to insert a length of insulated electric wire into connector 8 of the diagnostics socket and to earth the other end immediately after turning the ignition key to position 2. As the earthing takes place, begin counting the seconds as appropriate, then break the earth link. Aim for around mid-time range so you don't need stopwatch accuracy. Using a long wire means you don't have to fiddle with two connectors in the socket. Just hold the wire and earth it precisely.

You must earth the wire for differing time periods depending on what type of service/services you are resetting. There may be just one time session or it may require two sessions in turn.

If an Oil Service has occurred, use the Oil Service reset, then turn off the ignition. Next startup, an Inspection Service 15000 will be displayed as the next service interval. An Oil Service reset lasts 1 - 4 seconds.

If an Inspection Service has occurred, the Inspection reset is needed to bring up the Oil Service display at the next startup. Inspection reset lasts 8 - 25 seconds.

A Time Service reset also lasts 8 - 25 secs.

If an Oil Service reset and an Inspection reset are required, run an Inspection reset only. So, an Oil + Inspection reset is 8 - 25 secs.

If Oil or Inspection, together with a Time reset is needed, do the Oil/Inspection first (1 - 4 secs or 8 - 25 secs) followed by a Time reset of 8 - 25 secs. Do not move the ignition key between the two resets.

If you get any timing wrong it probably won't work. A wrong timing would be between 4 and 8 seconds, more than 25 secs or less than 1 second since none corresponds to a reset time period. I guess it uses a simple counting method.

A service display can only be reset when the 'excess' mileage is 1,000 or more (?) - Or is it - A service display can only be reset when there's been 1,000 or more miles since the previous reset.

(I don't understand either of these. Can anybody explain?)

That's it so far. Sorry if this seems pedantic, but in two years time, I'll need to go through all this again and I want to be sure.

Cheers,

JaX

Last edited by WaveGuide; 15-10-2005 at 19:04.
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post #56 of 266 (permalink) Old 15-10-2005, 19:11
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You can only reset it once 1000 miles are showing on the service clock, regardless of the actual miles you have driven since the last reset. The countdown is based on your driving style, road types used, mpg and other factors so it's possible to drive over 1500 miles yet still only show 14000 to the next service.

If the service indicator says 14025 miles to the next service, you will not be able to reset it until it says 14000 miles (or lower).

Hope this is a bit clearer
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post #57 of 266 (permalink) Old 15-10-2005, 19:12
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Quote:
Originally Posted by Major Ingram
I don't see why it shouldn't work on ALL 75/MGZT models, to be honest.
Likewise mate. Can only recommend those who failed try again!
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post #58 of 266 (permalink) Old 15-10-2005, 23:22
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Quote:
Originally Posted by RichK
- - - - Can only recommend those who failed try again!
Quote:
Originally Posted by RichK
- - - - If the service indicator says 14025 miles to the next service, you will not be able to reset it until it says 14000 miles (or lower).
Hope this is a bit clearer
Hello RichK,

1. Does the reasoning in my post above explain why people haven't got it to work?

2. OK thanks, I think I understand. Anyway, I'll keep reading it till I do. Does it imply you should use your odometer mileage for servicing rather than the countdown readout 'cos I can't see any other reason why you would want to do it? If that's so, why bother to have the countdown system?

It also explains why my countdown reading doesn't seem to move down much. I wondered about that. Guess I'm a leisurely/luxury rather than the speedy/flashy type!

Cheers,

JaX

Last edited by WaveGuide; 15-10-2005 at 23:45.
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post #59 of 266 (permalink) Old 16-10-2005, 08:24
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Hi Jax.

1. Sure does. It's all in the timing!

2. Never use the odometer mileage, the service counter is designed very accurately, as per my previous post.
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post #60 of 266 (permalink) Old 16-10-2005, 15:03
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works on a ZT 1.8T - 2004 pre facelift.


Was showing -1300
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