MG4 Undertray Gap - MG Fix inbound?

[FrancisM]

Yep TI-20231228 by the looks of it
View attachment 30825

That would have been helpful this morning. They took a close look at the undertray so they know what needs fixing.

 

[NLMGSAN]

How much of a gap can you see?

 

[FrancisM]

How much of a gap can you see?

About 1" height and 24" wide gap.

 

[NLMGSAN]

Similar to mine. It wasn't there when I bought it.

 

[HazardLights]

Hi,

I had a wee look under my new MG4 Trophy and noticed this gap. I am not sure if that is the undertray or some kind of trim as it's so far back. However what do you make of it? Would warranty cover this? I am sure people have had much worse but I want to start perfect and not have any more drag than I need to.

My LKA has turned itself back on twice now and whilst generally LKA isn't a problem it has done so just before a stretch of road just near my home where it pulls towards oncoming traffic! I don't know if there is a fix for that (on R40). Otherwise I love the car.

Thanks.

HazardLights

 

[Jomarkh]

Hi, there are a few threads on both of these issues just put a word or two in the search bar

 

[Rolfe]

Merged into the thread about the undertray fix. There are also several threads about the LKA. Search for "trying to kill me" and you'll get the idea.

 

[haloweenhamster]

Just take document TI-20231228 with you to the dealership, they can't argue then

TSB – Google Drive

drive.google.com

 

[siteguru]

Yes, that's the warped rear undertray, but that's a fairly minor warping (similar to mine that you can see at the link below).

http://www.siteguru.co.uk/MG4/Undertray.jpg

 

[siteguru]

Just take document TI-20231228 with you to the dealership, they can't argue then

TSB – Google Drive

drive.google.com

I've sent a copy of that to my dealer's Service Manager.

 

[Rolfe]

Yes, that's the warped rear undertray, but that's a fairly minor warping (similar to mine that you can see at the link below).

http://www.siteguru.co.uk/MG4/Undertray.jpg

It's similar to mine and I got the fix. I may be wrong, so many things affect fuel economy, but I suspect mine is a little better since the fix.

 

[siteguru]

Just had confirmation from my dealer that the fix will be applied to my car at the service next month. ?

 

[HazardLights]

Just take document TI-20231228 with you to the dealership, they can't argue then

TSB – Google Drive

drive.google.com

Excellent. Thank you. I will use that.

"After a long time driving you may notice". I noticed it after doing about 60 miles! I reckon I'd have noticed it if I looked earlier.

I assume I don't have to wait a year for my service and can just book it in under warranty.

 

[Rolfe]

Mine was there the first time I looked, which was pretty soon after I took the car home.

 

[NickHeynes]

Update on my replacement.
Not done. Dealership forgot to order the blots to affix to the bracket used so I'm going to have to take it back in next week .
They've also said that they'd rather do the star button at the same time.
Slightly hacked off but hey ho!

 

[siteguru]

Re. the star button my dealer service manager suggested a reload of the BCM software was needed. (Will be done at the service next month).

 

[Rolfe]

I'm going to have to keep an eye on mine. At first I thought it wasn't holding its setting at all, but the last few days it has been fine so it might have been my mistake.