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lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2777

Operator error, or needs looking at?

On my Defender D250 the transmission generally works seamlessly and is very smooth.

However, if you are slowing down, or going very slowly with little or no throttle input (in traffic for instance) and press the gas pedal quickly down, the revs rise immediately and then the transmission engages with a "thud"

If you drive more smoothly, as in, press the gas pedal more slowly down, it's absolutely fine and barely notice the gear changes.

Now, l've never had an automatic transmission before and don't know if this needs looking at, or if it's operator error.

Pulling away from standstill is fine, floor it and the transmission shifts seamlessly. lt's just if you are moving slowly or slowing down and the transmission has shifted to a higher gear.

Then, if you apply the gas quickly the engine revs rise and the transmission will then engage with a "thud"

5th Jan 2023 3:18pm

discomog

Member Since: 09 May 2015
Location: Notts/Lincs Border
Posts: 2527

2015 Defender 90 Puma 2.2 XS CSW Santorini Black

Sounds like the transmission maybe shifting down as you floor it. Maybe someone with a D250 could try and simulate flooring it from slow speed/light throttle and then comment. Defender 90XS SW
Mini Countryman Cooper S
Morgan Plus 8

5th Jan 2023 3:29pm

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2777

Yes it does shift down, the revs shoot up to about 3,000 and then engages suddenly with a lurch and surge of power

lf you are more careful with the gas pedal it is smooth. l just need to know if this is normal as l've always had manual transmission

lt's actually better if you move the lever to the left "S" mode as it then doesn't keep selecting the highest gear possible

5th Jan 2023 3:47pm

AndrewS

Member Since: 10 Apr 2007
Location: Hereford
Posts: 3707

2013 Defender 130 Puma 2.2 SW Rimini Red

I think its normal all of mine have done this, there seems to be a certain combination of factors when it occurs. I notice it happens in slow traffic or narrow roads when you are slowing down to pull over to let the on coming car go past. Then the on coming car pulls over for you to go past them. As you accelerate it takes off quite abruptly. 130's have feeling's as well you know

5th Jan 2023 11:13pm

Moo

Member Since: 01 Oct 2021
Location: UK
Posts: 1379

I've driven lots of autos and feel my D250 behaves oddly. It holds on to the gears and revs high when other cars would have changed down, does odd things going down hill where you have to accelerate to get it to change down and some times clunks at low speeds.

I'm adapting to driving to it but it just seems odd.

6th Jan 2023 1:01am

J77

Member Since: 04 Nov 2019
Location: Fife
Posts: 3396

My 90 D200 used to clunk, it went in for a 2WD warning popping up on the dash, part of the fix was a transmission software update, after that it was fine.

Being honest though my D200 felt better than my D250, the D250 seems to hold gears a lot longer. 24MY 90 D250 HSE, Tasman Blue

6th Jan 2023 6:51am

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2777

To update this thread, the transmission smoothed out over time. So now l've done 4,000 miles it's fine.

The dealer said that it's "learnt the type of driving that l do" but whatever, it's okay now.

23rd Apr 2023 7:30am

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