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D2 - Transmission Gearboxes, diffs, drive shafts.

 
 
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Old 13th March 2025, 10:07 AM
HPsauce HPsauce is offline
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Location: Chilterns, almost over HS2!
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Originally Posted by HPsauce View Post
we have recognisable interim codes of Z1 (1100) Z2 (1010) Z3 (1111) and Z4 (0011) displayed by VCDS. What the TCU does about them who knows
But either the TCU or engine ECU do something!
Today, as noted elsewhere, my F125 was flickering between N (1110) and Z3 (1111) while stationary in Neutral with the engine running. Every time it switched to Z3 the revs increased to over 1000 and dropped immediately it went back to N.

As I was parked on level ground I released both footbrake and handbrake for a while during this. There was no movement so I think the gearbox stayed firmly in neutral but the engine was definitely preparing for something, presumably assuming it was between D and 4?
__________________
2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions and extended leather. Ski hatch retrofit. Aftermarket reversing camera. DVB-T and XCarlink now removed as redundant.
2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (Even rarer than a D2 S8!) Oh, and a brand new engine at just under 30,000 miles on the factory one!
Finally: gone, but not forgotten.....
1998 D2 PF S8. Agate Grey/Platinum. Every option (I think) except electric rear seats, Tiptronic steering wheel, ski hatch, towbar & dimming door mirrors.
e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later)
1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon. Added Auto-dim mirror, Leather seats, Trip computer, Cruise control, OEM Ford SatNav with CD changer.
And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!

Last edited by HPsauce; 18th March 2025 at 10:18 AM.
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