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M-Sport lower rear bumper repair
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Online
- Lifer
- Posts: 8469
- Joined: Wed Jan 20, 2021 7:20 pm
- Location: Spaldingski
M-Sport lower rear bumper repair
My E89 has had a crease in the centre of the rear lower bumper/ valance since we got it two years ago. It looks like somebody reversed into a towbar or the corner of a post. On and off for those two years I have been considering how to sort it out. Used items from eBay are usually knackered and expensive and a replacement from BMW is very expensive.
So yesterday I took the valance off and set about trying to sort it. I didn't have much hope of improving it, as the crease was pretty sharp (you can see what is was like in the following pictures).
I heated up the creased area with a hairdryer and while still pretty warm, I tapped the top down with a hammer, the end covered in electrical tape to help with added dents. From the inside, again while quite warm, I used a thin piece of steel on the crease and hit that with a hammer. I had to do this a few times, heating it back up each time. I managed to push the dents below flush; so then filled the area with U-Pol plastic filler.
Once dried I sanded it all back flush with 320, 600 and finally 1500 grit wet and dry. I then sanded the whole piece with 600 grit to flatten the paint.
I bought a can of 'Sophisto Grey' metallic (A90 code) from Halfords and sprayed it with a couple of coats. Then finished it with a few coats of clear lacquer.
I was not expecting much TBH and was preparing to buy a replacement bumper if it didn't work well.
I am well chuffed with how it has come out; not 100% perfect but probably 95% and you can't notice any imperfections unless you runa finger across it. Cost me £10.99 for the paint; I had the plastic filler and lacquer already from a previous repair to the front valance.
Before: After:
So yesterday I took the valance off and set about trying to sort it. I didn't have much hope of improving it, as the crease was pretty sharp (you can see what is was like in the following pictures).
I heated up the creased area with a hairdryer and while still pretty warm, I tapped the top down with a hammer, the end covered in electrical tape to help with added dents. From the inside, again while quite warm, I used a thin piece of steel on the crease and hit that with a hammer. I had to do this a few times, heating it back up each time. I managed to push the dents below flush; so then filled the area with U-Pol plastic filler.
Once dried I sanded it all back flush with 320, 600 and finally 1500 grit wet and dry. I then sanded the whole piece with 600 grit to flatten the paint.
I bought a can of 'Sophisto Grey' metallic (A90 code) from Halfords and sprayed it with a couple of coats. Then finished it with a few coats of clear lacquer.
I was not expecting much TBH and was preparing to buy a replacement bumper if it didn't work well.
I am well chuffed with how it has come out; not 100% perfect but probably 95% and you can't notice any imperfections unless you runa finger across it. Cost me £10.99 for the paint; I had the plastic filler and lacquer already from a previous repair to the front valance.
Before: After:
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
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- Member
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- Joined: Sat Feb 26, 2022 7:12 pm
- Location: Surrey/ hants border
- smorris_12
- Member
- Posts: 902
- Joined: Mon Apr 18, 2022 2:14 pm
- Location: Somerset
M-Sport lower rear bumper repair
Excellent job. It's the sort of repair I always have to explain to a friend of mine as being more than good enough unless you actually lie on the ground and stare directly at it!
------
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
Scott
Where are we going and why am I in this handbasket?
2006 Z4 2.5si Silbergrau und rot
- inkey$
- Lifer
- Posts: 10479
- Joined: Sun Mar 21, 2010 9:48 pm
- Location: Sevenoaks & Suffolk
- Contact:
M-Sport lower rear bumper repair
Great result! Satisfying too when its been bugging you for a while
Current: Project Audi A2 1.4SE
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
Previously: Z3R 2.8 • E46 330i • Z4R 3.0 • Z4///MC • E90 335i • Z4///MR • Z3///MC 'Breadvan' • Z3R 2.8 • E30 325i R • Z4C • Z4R 3.0
- mkinternet
- Member
- Posts: 169
- Joined: Mon Jun 11, 2018 8:38 am
- Location: Bedfordshire
M-Sport lower rear bumper repair
Fab job - well done
E89 - 3.0i Auto 2010
Bilstein B12 Pro Kit
Wiechers Front Strut Brace
19” MAK LUFT Wheels
H&R Anti Roll Bars (Front and Rear)
Royals Steering Wheel
35i Brake Upgrade
Stage 1 Remap
Bilstein B12 Pro Kit
Wiechers Front Strut Brace
19” MAK LUFT Wheels
H&R Anti Roll Bars (Front and Rear)
Royals Steering Wheel
35i Brake Upgrade
Stage 1 Remap
- Smartbear
- Lifer
- Posts: 13685
- Joined: Wed Feb 05, 2014 6:54 pm
- Location: a barn in Somerset
M-Sport lower rear bumper repair
Looks much better, I’m assuming the previous owner was deaf & couldn’t hear the parking sensors
Rob
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
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- Member
- Posts: 508
- Joined: Tue Mar 25, 2014 5:24 pm
- Location: Edinburgh
M-Sport lower rear bumper repair
I have one of these to sell if you decide you want to replace it, just PM me.
2012 E89 sDrive20i M Sport Celtic Tuning Stage 3 Remap
2008 E86 Z4 M Sport 2.0i - Gone
2003 E46 316ti M Sport - Gone
2008 E86 Z4 M Sport 2.0i - Gone
2003 E46 316ti M Sport - Gone
- B21
- Lifer
- Posts: 5408
- Joined: Tue Oct 05, 2021 7:15 pm
- Location: In my Banana Yellow Space Shuttle...somewhere over Southern Caledonia
M-Sport lower rear bumper repair
He was an Arnold Clark driver..say no more…
Here in Scotland it’s the sign of someone who goes through 20 mph limits either at 15 mph or 45 mph..in de-restricted areas does 45 mph,turns without mirrors or signals and either frequents McDonalds or one of the many garden centres sprinkled across the country…
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
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Online
- Lifer
- Posts: 8469
- Joined: Wed Jan 20, 2021 7:20 pm
- Location: Spaldingski
M-Sport lower rear bumper repair
A C was where I bought it from! I have another set of plates but they have Shytner on them, so rock and a hard place!
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
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Online
- Lifer
- Posts: 8469
- Joined: Wed Jan 20, 2021 7:20 pm
- Location: Spaldingski
M-Sport lower rear bumper repair
That has crossed my mind. The crease is bang in the middle, so I'm thinking a long tow bar or similar.
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
- MikeyH
- Lifer
- Posts: 4842
- Joined: Sat Oct 02, 2021 10:57 pm
- Location: Devon
M-Sport lower rear bumper repair
You've made a good job of that pondrew
Now, Sterling grey Z4 2.2 with cup holders, stubby aerial and sport seats. Roadsters ‘cause they’re great with the roof down.
Ford Anglia, Red Sprite, a few MG midgets, MGB Roadster and yellow Ford Capri, all gone many years now.
Ford Anglia, Red Sprite, a few MG midgets, MGB Roadster and yellow Ford Capri, all gone many years now.
- tiglon
- Senior Member
- Posts: 1065
- Joined: Mon Jun 24, 2019 11:20 am
- Location: Essex
M-Sport lower rear bumper repair
Looks like a good job but.... all I'm hearing is that you reversed into a tow bar and don't want to take responsibility
2014 E89 35is Valencia Orange 788M wheels (M2 Competition), E90 M3 control arms, Eibach Pro Kit Springs, MHD Stage 1
- pvr
- Legend
- Posts: 26237
- Joined: Fri Jun 15, 2007 12:27 pm
- Location: South East UK
M-Sport lower rear bumper repair
So it went from grey metallic to black now?
Finish looks good though, quite impressive for someone who cannot bend down
Finish looks good though, quite impressive for someone who cannot bend down
Current:
911-50 Black - unique spec
X5M - 575 hp of fun in a V8
Abarth 595 Comp.
Golf Clipper - collectors item
Z4 3.0si Black Sapphire
VW ID.3
Previous:
Z4M Silver Grey - non flimper spec (gone to Bing)
Z4 3.0 Toledo
911-50 Black - unique spec
X5M - 575 hp of fun in a V8
Abarth 595 Comp.
Golf Clipper - collectors item
Z4 3.0si Black Sapphire
VW ID.3
Previous:
Z4M Silver Grey - non flimper spec (gone to Bing)
Z4 3.0 Toledo
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Online
- Lifer
- Posts: 8469
- Joined: Wed Jan 20, 2021 7:20 pm
- Location: Spaldingski
M-Sport lower rear bumper repair
Same colour as before. Light was fading so camera decided to do that. A photographer I definitely am NOT!
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!