Heat insulator and Underride protection parts question

2008bimmerM3 · 12-15-2021, 06:45 PM

Hey Guys,

During the CPO certification the dealer had to replace the two following parts:

Heat insulator part # 51-48-7-158-416

Under ride protection part # 51-75-7-325-391

I can't seem to find pictures of where these parts are located on my 2018 X5. Can someone help me find the pictures of where these parts are located on the car?

Why would these parts need to be replaced? How did the previous driver damage these parts?

RED_Y_ · 12-15-2021, 08:54 PM

Did you try to search on realoem.com?

Heat insulator #13 :
https://www.realoem.com/bmw/enUS/sho...10#51487158416
Tank protection left #2:
https://www.realoem.com/bmw/enUS/sho...37#51757325391
Went over something I guess?

2008bimmerM3 · 12-15-2021, 09:29 PM

Quote:

Originally Posted by RED_Y_

Did you try to search on realoem.com?

Heat insulator #13 :
https://www.realoem.com/bmw/enUS/sho...10#51487158416
Tank protection left #2:
https://www.realoem.com/bmw/enUS/sho...37#51757325391
Went over something I guess?

sorry, did not check on real oem

would anyone have physical pictures of these parts on the car?

Are theses just panels that screw onto the car from underneath?

Is it something easy to replace?

If its easy to replace that would tell me the damage wasn't too bad right?

RED_Y_ · 12-15-2021, 10:13 PM

You can see the pictures on the ECS tuning
https://www.ecstuning.com/b-genuine-...k/51757325391/
https://www.ecstuning.com/b-genuine-...n/51487158416/

Yes both got underneath, one just plastic covers the fuel tank another one is tin metal/fibers goes over the exhaust at the bottom of the car. Hard to guess what exactly happened there.

Ascotgrun · 12-16-2021, 07:46 PM

Road "Gators", those large strips of retread rubber you often see on highways can easily cause this damage. Those strips from truck tires are pretty heavy and durable and if flicked up when run over by another vehicle can do a lot of damage.

I have heavy gauge stainless steel steps on my work truck (I drive an 18 wheeler) that were bent when I ran over a gator with one of my front tires. You definitely don't want one hitting your windshield so best not to tailgate or even drive too closely to the side of large trucks. Trailer tire blowouts are fairly common and when they go, it sounds like small bomb and that rubber tread goes flying everywhere.

One dude following me on I95 in SC nearly flipped his SUV when he was right behind me and a trailer tire blew. I don't think the rubber caused any actual damage, it was more the driver panicking and swerving sharply that caused the SUV to go up on two wheels. Pure luck why he didn't rollover.

12-15-2021, 06:45 PM	#1
2008bimmerM3 First Lieutenant 51 Rep 322 Posts Drives: JB Join Date: Oct 2008 Location: SO CAL iTrader: (0)	Heat insulator and Underride protection parts question Hey Guys, During the CPO certification the dealer had to replace the two following parts: Heat insulator part # 51-48-7-158-416 Under ride protection part # 51-75-7-325-391 I can't seem to find pictures of where these parts are located on my 2018 X5. Can someone help me find the pictures of where these parts are located on the car? Why would these parts need to be replaced? How did the previous driver damage these parts?
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12-15-2021, 10:13 PM	#4
RED_Y_ Colonel 1062 Rep 2,517 Posts Drives: 2014 X5 3.5d Join Date: Sep 2017 Location: SF Bay Area iTrader: (0)	You can see the pictures on the ECS tuning https://www.ecstuning.com/b-genuine-...k/51757325391/ https://www.ecstuning.com/b-genuine-...n/51487158416/ Yes both got underneath, one just plastic covers the fuel tank another one is tin metal/fibers goes over the exhaust at the bottom of the car. Hard to guess what exactly happened there.
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Heat insulator and Underride protection parts question

12-15-2021, 08:54 PM	#2
RED_Y_ Colonel 1062 Rep 2,517 Posts Drives: 2014 X5 3.5d Join Date: Sep 2017 Location: SF Bay Area iTrader: (0)	Did you try to search on realoem.com? Heat insulator #13 : https://www.realoem.com/bmw/enUS/sho...10#51487158416 Tank protection left #2: https://www.realoem.com/bmw/enUS/sho...37#51757325391 Went over something I guess?
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12-16-2021, 07:46 PM	#5
Ascotgrun Second Lieutenant 171 Rep 299 Posts Drives: X5 Join Date: Mar 2021 Location: Florida iTrader: (0)	Road "Gators", those large strips of retread rubber you often see on highways can easily cause this damage. Those strips from truck tires are pretty heavy and durable and if flicked up when run over by another vehicle can do a lot of damage. I have heavy gauge stainless steel steps on my work truck (I drive an 18 wheeler) that were bent when I ran over a gator with one of my front tires. You definitely don't want one hitting your windshield so best not to tailgate or even drive too closely to the side of large trucks. Trailer tire blowouts are fairly common and when they go, it sounds like small bomb and that rubber tread goes flying everywhere. One dude following me on I95 in SC nearly flipped his SUV when he was right behind me and a trailer tire blew. I don't think the rubber caused any actual damage, it was more the driver panicking and swerving sharply that caused the SUV to go up on two wheels. Pure luck why he didn't rollover.
	Appreciate 0 Quote