Whistling noise from rear spoiler (merged)

[NLMGSAN]

I also have this high pitched whistle at the rear of the car, however I was under the impression it was the wing on the Trophy that causes this. At least, that's what another owner of a Trophy told me at my place of work..

At what speeds?

 

[DannySB1]

At what speeds?

Maybe around 40mph+. It seems to be more audible in windier conditions, which led me to believe my colleagues view it was the wing causing the whistle but we could both be wrong.

I'll listen out for it again tomorrow and report back with a more accurate speed.

 

[NLMGSAN]

But is yours showing a rear undertray with a hanging lip?

 

[DannySB1]

But is yours showing a rear undertray with a hanging lip?

No idea, I've not checked this yet. Before I saw this thread I didn't even realise the whistle was a potential issue.

 

[Yorkshire Hillbilly]

I was under the impression it was the wing on the Trophy that causes this.

My garage already tried tightening the spoiler and the rear lights all to no avail. I'm guessing they're proceeding with the under tray as they've ran out of options.

 

[Chris Bronsdon]

My garage already tried tightening the spoiler and the rear lights all to no avail. I'm guessing they're proceeding with the under tray as they've ran out of options.

I've got the same problem on my MG4 Trophy - high pitched noise at about / above 60mph.

Have your garage mangaged to fix it for you?

 

[Ralegend]

Hi In my MG4 Trophy it is an annoying sound from the back of the car in speeds from ca 40 to 65 mph. The sound is metal-like, a bit high frequency, uneven oscillating, and not dependent on the wind or brakes. Not a high sound but is very annoying.I have had it at the workshop once, they heard the noise but could not find the reason. I have a new appointment on Wednesday. Does anyone else have that noise in their car so far?

I have the exact same problem. I didn't want to open a new post. I wrote these in the following topics but could not solve the issue. For some reason I prefer not to go to the service center. Like I posted before it's been there since I bought the car. And although I didn't care at first, it's starting to bother me now.

Creak in rear/boot

I nearly took Caliban over this the day before yesterday, but caution prevailed. The Google Streetview van appears to have made it over, but I was a bit nervous about grounding the bottom of the battery case. You should ground the sills before the battery as they sit a bit lower but you...

www.mgevs.com

Concerning creaking from the rear left

Give it a try….insulation tape on the strike surface of the boot latch. Will do, I was little nervous about the latch getting stuck with tape, but given the garage have been hopeless...

www.mgevs.com

 

[Ralegend]

[ Moderator: Cause and temporary relief here. ]

Hello. There has been a noise in my MG4 Trophy LR v2 since it was purchased. The sound is a metal friction sound (or a old ringing sound), high frequency, uneven oscillating, and not dependent on the wind, brakes and acceleration. It is a very very disturbing noise. The noise starts at around 45km/h and stops at around 100 km/h. It's been 7 months since I bought my vehicle. For some reason I don't want to go to the service point. I believe that I can solve the problem myself. Although I didn't care at first, it's starting to bother me now.

The attached solution did not work. I also checked the tailgate. Everything including the rubbers seem fine including under the tailgate area (nothing loose).
Thank you for your help.

 

[Bricktop X PWR]

Plug in all your rear seat belts.
Have a look under boot floor and check everything is firmly in place.
If you carry any loose items in the back/boot floor, remove them.

Put an old cloth over that bracket and shut the hatch again.

Still doing it?

Check your rear spoiler is secure (bolts under circular black covers)

 

[Ralegend]

Check your rear spoiler is secure (bolts under circular black covers)

Hello. Thank you for your reply. Do you mean those?

 

[Bricktop X PWR]

That's them.

Pop them off and just check the nuts are not loose. ?

 

[Ralegend]

That's them.

Pop them off and just check the nuts are not loose. ?

Hello. Thank you for your reply. How to pop them off? By pulling or is there any other correct way to do it?

 

[Bricktop X PWR]

Hello. Thank you for your reply. How to pop them off? By pulling or is there any other correct way to do it?

Just use your fingernail.
They come off easily. (Mine did)

 

[Ralegend]

Hello. Thank you for your reply.
As you said, they come off very easily.
My screwdriver set is not compatible with most of the bolts. As a result I only checked and tightened 2 screws but the noise is still there. But I will update when I check the others.
Thank you.

 

[erdqphk]

Hello. There has been a noise in my MG4 Trophy LR v2 since it was purchased. The sound is a metal friction sound (or an odd ringing sound), high frequency, uneven oscillating, and not dependent on the wind, brakes and acceleration. It is a very very disturbing noise. The noise starts at around 45 km/h and stops at around 100 km/h. It's been 7 months since I bought my vehicle. For some reason I don't want to go to the service point. I believe that I can solve the problem myself. Although I didn't care at first, it's starting to bother me now.

The attached solution did not work. I also checked the tailgate. Everything including the rubbers seem fine including under the tailgate area (nothing loose).
Thank you for your help.

Hi Ralegend,
I have exactly the same MG4 model as you and have had a problem of noise from the rear of the car when going over uneven roads (of which there are many round our way) and slowly going over speed bumps. These noises consisted of a creaking noise of metal against metal, and a dull thud. Thanks to this forum I tracked down the first to the boot lid not being held tightly when closed, and this was cured by gluing a rubber tap washer into each of the depressions where the car boot-lid studs close onto the car body. (I didn't fancy trying to adjust the boot catch mechanism.) The 'thud' noise was more difficult to trace. First I thought it was the loose fitting boot floor panel lifting up when going over road bumps, but pinning that down didn't help. Then I tried 'fixing' all of the items (tyre pump etc) below the boot floor panel. No luck. Eventually, l removed everything from the boot and still the dull thud could be heard when going over speed bumps, however slowly. Finally, thanks to Bricktop X PWR on this forum, I checked the rear spoiler and, sure enough, it was loose and was free to move upwards from the rear glass window by about 5mm. Lifting it by hand and letting it fall back produced the 'thud' I was hearing before. So now that spoiler has been tightened up, I now have a beautifully quiet car regardless of potholes, speedbumps, etc Thankyou.

 

[Ralegend]

Hi Ralegend,
I have exactly the same MG4 model as you and have had a problem of noise from the rear of the car when going over uneven roads (of which there are many round our way) and slowly going over speedbumps. These noises comprised a creaking noise of metal against metal, and a dull thud. Thanks to this forum I tracked down the first to the boot lid not being held tightly when closed, and this was cured by gluing a rubber tap washer into each of the depressions where the car boot-lid studs close onto the car body. (I didn't fancy trying to adjust the boot catch mechanism). The 'thud' noise was more difficult to trace. First I thought it was the loose fitting boot floor panel lifting up when going over road bumps, but pinning that fown didn't help. Then I tried 'fixing' all of the items (tyre pump etc) below the boot floor panel. No luck. Eventually, l removed everything from the boot and still the dull thud could be heard when going over speed bumps, however slowly. Finally, thanks to Bricktop X PWR on this forum, I checked the rear spoiler and, sure enough, it was loose and was free to move upwards from the rear glass window by about 5mm. Lifting it by hand and letting it fall back produced the 'thud' I was hearing before. So now that spoiler has been tightened up, I now have a beautifully quiet car regardless of potholes, speedbumps, etc Thankyou.

Hello. Thank you very much for your reply.
I am still working on the spoiler. I tightened up 2 of the bolts. But for the remaining, I need another screwdriver.

Hi Ralegend,
I have exactly the same MG4 model as you and have had a problem of noise from the rear of the car when going over uneven roads (of which there are many round our way) and slowly going over speed bumps. These noises consisted of a creaking noise of metal against metal, and a dull thud. Thanks to this forum I tracked down the first to the boot lid not being held tightly when closed, and this was cured by gluing a rubber tap washer into each of the depressions where the car boot-lid studs close onto the car body. (I didn't fancy trying to adjust the boot catch mechanism.) The 'thud' noise was more difficult to trace. First I thought it was the loose fitting boot floor panel lifting up when going over road bumps, but pinning that down didn't help. Then I tried 'fixing' all of the items (tyre pump etc) below the boot floor panel. No luck. Eventually, l removed everything from the boot and still the dull thud could be heard when going over speed bumps, however slowly. Finally, thanks to Bricktop X PWR on this forum, I checked the rear spoiler and, sure enough, it was loose and was free to move upwards from the rear glass window by about 5mm. Lifting it by hand and letting it fall back produced the 'thud' I was hearing before. So now that spoiler has been tightened up, I now have a beautifully quiet car regardless of potholes, speedbumps, etc Thankyou.

Hello. I tightened up all of them. The noise is still there.

Thanks to this forum I tracked down the first to the boot lid not being held tightly when closed, and this was cured by gluing a rubber tap washer into each of the depressions where the car boot-lid studs close onto the car body. (I didn't fancy trying to adjust the boot catch mechanism).

Could you please show how to do it? And what is needed to do it?

 

[Ian Key]

If you read the start of this thread that you have already posted on you will see how to adjust the rubber stops without needing to stick tap washers onto the car.

Creak in rear/boot

Good morning, My MG4 Trophy is 7 months old and has developed a creak in the rear/boot. This does not happen on smooth roads, just on uneven country lanes. It seems to be if the car flexes causes the creak. I have been all around the rear of the car pressing and prodding but everything...

www.mgevs.com

 

[Ralegend]

If you read the start of this thread that you have already posted on you will see how to adjust the rubber stops without needing to stick tap washers onto the car.

Creak in rear/boot

Good morning, My MG4 Trophy is 7 months old and has developed a creak in the rear/boot. This does not happen on smooth roads, just on uneven country lanes. It seems to be if the car flexes causes the creak. I have been all around the rear of the car pressing and prodding but everything...

www.mgevs.com

Hello. Thank you for your reply. Do you mean the attached picture area? I tried this. Probably the first one I tried.

 

[Ian Key]

Yes. If you've adjusted those, taped the catch, checked everything under the false boot floor is fastened down and not knocking against each other, put a bit of foam on the plastic trim where the rear seatbelt buckle rests when not in use and tightened the spoiler, it might be time to get your dealer to look at it.

 

[Ralegend]

Yes. If you've adjusted those, taped the catch, checked everything under the false boot floor is fastened down and not knocking against each other, put a bit of foam on the plastic trim where the rear seatbelt buckle rests when not in use and tightened the spoiler, it might be time to get your dealer to look at it.

Thank you for your reply. I couldn't come up with a solution.
You're right. It's time to go to the service center.