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Home > General & Technical (L663) > Throttle/shifting issues at low speed (Defender 90 '25)
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difflock1000



Member Since: 10 Nov 2024
Location: Arabia
Posts: 1

 2016 Defender 90 Other 50th Auto Atlantis Blue
Throttle/shifting issues at low speed (Defender 90 '25)
Hello there!

Just got my 2025 X-DYNAMIC HSE Ingenium 3,0 litre 6-cylinder 400PS Turbocharged Petrol MHEV (Automatic) a few days ago and I've been having issues with throttle and weird gear shifting particularly at low speeds. The following summarizes it nicely:

- Coming out of slow corners it's as if the throttle doesn't “catch” sometimes, I’ll push the accelerator down and nothing happens for a second or two, then it suddenly takes off.
- This is also apparent when approaching a roundabout and slowing down, then deciding to pick up speed again, the throttle response is exceptionally delayed
- In stop and go traffic it's impossible to drive smoothly, the car hesitates between 1st and 2nd gear around the 20-25km/h range. Sometimes randomly downshifting when I slightly let go of the accelerator with a noticeable jerking sensation in the vehicle

This all feels extremely dangerous to me as it impacts my ability to confidently overtake, merge into a highway, etc. I can feel people behind me in traffic are already Censored .

This is all in Comfort mode. My car does not have Dynamic mode. And putting it in S mode does make it a tiny, just a tiny bit better but all the issues are still there.

Would appreciate any insight!
Post #1051265 10th Nov 2024 7:15pm
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lightning



Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2748

United Kingdom 
I would wait until you've done a few miles before complaining to the dealer about the Defender's transmission.

My D250 was similar when l first got it but slowly improved over time. Also in slow moving traffic l find it's smoother to move the transmission lever over to "S" and manually select second gear.
Post #1051273 10th Nov 2024 8:39pm
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DFNDER



Member Since: 02 Oct 2023
Location: Perth WA
Posts: 131

Australia 
It's the adaptations in the transmission ecu. As said you need to drive it more and also in manual mode. The ecu adapts to your driving style and relearns the factory set shift points.
Post #1051287 10th Nov 2024 11:36pm
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eno



Member Since: 15 Apr 2024
Location: Qld
Posts: 25

Australia 
I felt the same thing in a 90-P400 demonstrator vehicle that I test drove. It was quite off-putting. Yet in a 110-P300 I test drove the throttle response was good, as would be expected. And the 90-P300 I purchased is good too.

In the P400 I got the feeling it was more engine response related than transmission related. Maybe to do with the electric supercharger engagement, or something like that
Post #1051294 11th Nov 2024 6:39am
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