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LandyLover1107

Member Since: 23 Dec 2024
Location: Western Cape
Posts: 10

Sorry guys. I have been MIA for a while.

I'm very happy to see so many posts about the same issue - even though I'm saddened by a brilliant car being ruined in a large way due to one issue - which never used to be there on the ones before 25MY.

It is truly incredible that all these cars pass quality control from factory. Surely one would expect JLR to have measures in place to test a few cars in a batch at least. Seems like it's either not being done or even more shockingly, being missed by quality control.

To add on a point from earlier, I can confirm D250 also has the exact same issue. Basically - all new Defender Diesels are doing it (have not driven petrol 25MY yet). So I would assume it does not have anything to do with torque being too high for the ZF transmission to handle as the D250 has 570N.M which is less than 24MY D300.

I hope that with testing, JLR dealers are finding this thread and attaching it to their communications with head office technical - it would be the logical thing to do.

Everyone, please keep posting as a lot have you have been saying - the more response we get the higher the likelihood of a fix from JLR.

I will continue monitoring and advise if/when I hear of a technical bulletin being released regarding this.

31st Jan 2025 11:36am

six13

Member Since: 22 Jan 2025
Location: Pretoria
Posts: 3

Just an update. My D350 is going to the dealer on Wednesday for a software update that apparently may fix this issue. So, it seems that they are now more aware of the issue and looking for a solution.I will post an update to let you know if it worked. Let's hold thumbs.

3rd Feb 2025 3:06pm

discobean

Member Since: 06 Jan 2025
Location: Sydney
Posts: 6

If it does fix it and your dealer has a service bulletin or any official information they can for the rest of our dealers that would be fantastic

3rd Feb 2025 9:42pm

Flinders

Member Since: 17 Feb 2024
Location: West Yorkshire
Posts: 60

I hope it does work. They tried twice to sort my rejected D350.

First attempt lists as ‘carry out a 2F adaptation drive cycle’. The second attempt lists as ‘run a gear box calibration as required’. None of these resolved it.

It also went to JLR Tech for the solution on both occasions and the dealer had to wait a few days for any suggested solutions.

I’m hoping there is a solution before my replacement arrives!

MY25 Defender 90 D350 X Dynamic HSE - REJECTED

MY18 Discovery 5 3.0ltr TD6 HSE Lux - Derek

3rd Feb 2025 10:24pm

LandyLover1107

Member Since: 23 Dec 2024
Location: Western Cape
Posts: 10

six13 wrote:
Just an update. My D350 is going to the dealer on Wednesday for a software update that apparently may fix this issue. So, it seems that they are now more aware of the issue and looking for a solution.I will post an update to let you know if it worked. Let's hold thumbs.

six13, I'm looking forward to your update.
If it does resolve the issue, please would you mind asking your dealer for the bulletin reference number so we can all share with our dealers? Like discobean also mentioned.

Crossing all fingers and holding thumbs!

4th Feb 2025 11:05am

mse

Member Since: 06 Apr 2008
Location: UK
Posts: 5074

2016 Defender 110 Puma 2.2 XS CSW Scotia Grey

Flinders wrote:
This was one of the many issues I had with my recently rejected D350. I likened it to when I was a new driver many years ago with my fiesta and a dodgy clutch!

The first technician couldn’t find a problem, the second, more experienced technician who was trying to solve the rolling back in ‘d’ issue resolved the dodgy gear change by reprogramming each gear one by one. Not sure how he did this but he said it took hours. It did actually solve the poor gear changes! Shame they couldn’t fix the rolling back so I still rejected the car.

I’m having this issue with my d350, it nearly ripped back into the bollard in my work car park trying to drive away. What was the fix? Mike

5th Feb 2025 9:14pm

Flinders

Member Since: 17 Feb 2024
Location: West Yorkshire
Posts: 60

Mse - unfortunately they didn’t fix it. I rejected the car. Just waiting replacement I ordered and hoping that one doesn’t have the same problem! MY25 Defender 90 D350 X Dynamic HSE - REJECTED

MY18 Discovery 5 3.0ltr TD6 HSE Lux - Derek

6th Feb 2025 11:34am

mse

Member Since: 06 Apr 2008
Location: UK
Posts: 5074

Annoying, the rest of the car is fine - but this rolling problem is annoying, ill have to book it in Mike

6th Feb 2025 12:03pm

six13

Member Since: 22 Jan 2025
Location: Pretoria
Posts: 3

Unfortunately, it didn't fix the issue. Not sure what they did but they updated a bunch of software. They also topped up the gearbox oil as suggested. But the issue is still there. As you said it is so annoying as this is the only issue I have with the car. I have learned how to manage stops and traffic light stops - but one shouldn't have to do that.

So back to square one!

19th Feb 2025 12:01pm

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