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      02-19-2020, 05:25 PM   #1
Akokar
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Front bumper paint

So I have n M5 comp few weeks back had to get car towed due to flat tire. Tow guy scrapped my front bumper noting noticeable but scratches r there if u look under. Went to Bmw to get n estimate and find out this bumper can not b painted only one time use due to sensor etc.
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      02-19-2020, 07:13 PM   #2
TrevorM3
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i dont understand your last statement.

any bumper can be painted, multiple times. It's how i make a living...


That being said, for the job to be done right, they need to remove the bumper, remove the sensors, (paint them also) and then re-install them. What is so difficult? There is nothing that is "one time usage" on a bumper. If they are saying you should replace anything, it's a lie. Shit like this makes my blood boil.


Honestly, for that, i'd just touch it up. It's bound for more abuse, especially if it's lowered.
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      02-19-2020, 08:36 PM   #3
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This is true. I own a shop and we are a BMW CCRC. BMW does not allow repainting of the front or rear covers, on most of the newer models, due to excess film build that could inhibit the ADAS sensors behind the covers. Tru story.
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      02-19-2020, 08:42 PM   #4
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https://rts.i-car.com/collision-repa...-adas-bmw.html
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      02-19-2020, 10:32 PM   #5
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Can it be seen from the front of the car? I assume not. I wouldn't worry about it if not.
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      02-20-2020, 01:48 AM   #6
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So what happens if you have an accident and the bumper needs to be replaced with a new unpainted bumper?

Are they saying that you can't paint a new OEM bumper, or you just have to follow strict paint depth guidelines?
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      02-20-2020, 01:59 AM   #7
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Quote:
Originally Posted by TrevorM3 View Post
i dont understand your last statement.

any bumper can be painted, multiple times. It's how i make a living...


That being said, for the job to be done right, they need to remove the bumper, remove the sensors, (paint them also) and then re-install them. What is so difficult? There is nothing that is "one time usage" on a bumper. If they are saying you should replace anything, it's a lie. Shit like this makes my blood boil.


Honestly, for that, i'd just touch it up. It's bound for more abuse, especially if it's lowered.
Basically telling me if they take bumper out sensors n side markers r one time use only they can't use it again. I don't think m goin to do anything with mine it's not visible.
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      02-20-2020, 02:04 AM   #8
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So, what about fitting front lips?

Does this affect sensors?
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      02-20-2020, 03:46 AM   #9
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Quote:
Originally Posted by Mr Burns View Post
So, what about fitting front lips?

Does this affect sensors?
I have an RKP Front Lip and Ive never any issue with the sensors.

The only thing that is a problem with the Lip is I have to be cognizant and not park to close to the parking blocks; I’ve dinged it once or twice. The trick is to drive very slowly until the sensor(s) start beeping then just stop and put it in park.
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      02-20-2020, 06:53 PM   #10
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Quote:
Originally Posted by gojumatt View Post
This is true. I own a shop and we are a BMW CCRC. BMW does not allow repainting of the front or rear covers, on most of the newer models, due to excess film build that could inhibit the ADAS sensors behind the covers. Tru story.


this is such bullshit, and you know it. I dont care if you own a shop or not. This is just another way for the consumer, or insurance company to pay more money. The sensor itself has paint on it, so i see no issue.

I just did a brand new 5 series the other day, removed the bumper, removed sensors, reinstalled everything. works fine... the only thing that is one time use are the reflectors. everything else can go back on.
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      02-20-2020, 06:54 PM   #11
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Quote:
Originally Posted by Mr Burns View Post
So, what about fitting front lips?

Does this affect sensors?


no.
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      02-20-2020, 06:55 PM   #12
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Quote:
Originally Posted by Akokar View Post
Basically telling me if they take bumper out sensors n side markers r one time use only they can't use it again. I don't think m goin to do anything with mine it's not visible.


markers will need to be replaced. thats it.
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      02-20-2020, 08:57 PM   #13
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Quote:
Originally Posted by TrevorM3 View Post
this is such bullshit, and you know it. I dont care if you own a shop or not. This is just another way for the consumer, or insurance company to pay more money. The sensor itself has paint on it, so i see no issue.

I just did a brand new 5 series the other day, removed the bumper, removed sensors, reinstalled everything. works fine... the only thing that is one time use are the reflectors. everything else can go back on.
Uh? Ok. So BMW is full of shit? I’m sure their engineers know absolutely nothing. I didn’t make the car. Sure it sounds silly, but you should only repair a car in accordance with OEM procedures or not at all. A lot of their newer models have blind spot sensors behind the covers. With all the ADAS it’s your ass on the line....
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      02-21-2020, 04:04 PM   #14
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Quote:
Originally Posted by TrevorM3 View Post
this is such bullshit, and you know it. I dont care if you own a shop or not. This is just another way for the consumer, or insurance company to pay more money. The sensor itself has paint on it, so i see no issue.

I just did a brand new 5 series the other day, removed the bumper, removed sensors, reinstalled everything. works fine... the only thing that is one time use are the reflectors. everything else can go back on.
There is also a Individual color that if you order it BMW removes the blind spot monitor sensor from your order because the thickness of that paint messes with the blind spot sensor.
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Last edited by BMWM5NYC; 02-21-2020 at 04:43 PM..
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      02-21-2020, 05:50 PM   #15
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Originally Posted by BMWM5NYC View Post
There is also a Individual color that if you order it BMW removes the blind spot monitor sensor from your order because the thickness of that paint messes with the blind spot sensor.
Bingo. You’ve got to know your stuff to fix cars correctly this day and age....
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      02-21-2020, 08:12 PM   #16
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Quote:
Originally Posted by gojumatt View Post
Uh? Ok. So BMW is full of shit? I’m sure their engineers know absolutely nothing. I didn’t make the car. Sure it sounds silly, but you should only repair a car in accordance with OEM procedures or not at all. A lot of their newer models have blind spot sensors behind the covers. With all the ADAS it’s your ass on the line....


I'd say they are full of shit. From my take, they are saying don't bondo over/near the sensors. If you're telling me you're going to replace every bumper that comes into your shop, that is pure insanity. I simply can't understand it. And it's not as if i haven't repaired one already.
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      02-21-2020, 08:13 PM   #17
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Quote:
Originally Posted by BMWM5NYC View Post
There is also a Individual color that if you order it BMW removes the blind spot monitor sensor from your order because the thickness of that paint messes with the blind spot sensor.


How does a color effect the paint thickness?
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      02-21-2020, 08:29 PM   #18
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Quote:
Originally Posted by TrevorM3 View Post
Quote:
Originally Posted by BMWM5NYC View Post
There is also a Individual color that if you order it BMW removes the blind spot monitor sensor from your order because the thickness of that paint messes with the blind spot sensor.


How does a color effect the paint thickness?
Some paints look different at varying angles and that is created with layering and varying thickness of the materials in the layers.
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      02-21-2020, 09:12 PM   #19
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Quote:
Originally Posted by TrevorM3 View Post
I'd say they are full of shit. From my take, they are saying don't bondo over/near the sensors. If you're telling me you're going to replace every bumper that comes into your shop, that is pure insanity. I simply can't understand it. And it's not as if i haven't repaired one already.
Well, that’s your choice. You didn’t fix it the way you were supposed to according to the manufacturer . I’m not risking my business on “that’s the way we’ve done it for years”. Time are changing. Sorry.
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      02-21-2020, 09:14 PM   #20
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Quote:
Originally Posted by TrevorM3 View Post
How does a color effect the paint thickness?
Really, you fix cars and you don’t know this??? Single, two, three, and now four stage paint processes..... some colors cover well, some take many coats to achieve the proper coverage.

Last edited by gojumatt; 02-21-2020 at 09:23 PM..
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      02-21-2020, 09:24 PM   #21
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Quote:
Originally Posted by gojumatt View Post
Really, you fix cars and you don’t know this??? Single, two, three, and now four stage paint processes..... some colors color well, some take many coats to achieve the proper coverage.


so lets take mineral white TS for instance, you can't have too much paint on the bumper or the sensors wont work?

this convo is retarded.
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      02-21-2020, 09:25 PM   #22
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Originally Posted by gojumatt View Post
Well, that’s your choice. You didn’t fix it the way you were supposed to according to the manufacturer . I’m not risking my business on “that’s the way we’ve done it for years”. Time are changing. Sorry.



cool, man. I'm sure you enjoy ripping folks off on a bumper job.


you're telling me you'd tell someone like OP to replace his bumper if he came into your shop? That is criminal.
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