Heat shield rattle?

Bmwerspeed123 · 11-09-2021, 10:30 PM

Installed new awe exhuast, now I hear rattling from below of center console/passenger side. Does anyone know where exactly the exhaust heat shield is located in a 2017 320i xdrive?

weehe126 · 11-10-2021, 08:43 AM

This is the B58 section. The exhaust is probably hitting something. Get under and take a look.

vcx · 11-11-2021, 03:07 AM

When I got my MPPSK exhaust installed by the official BMW dealer, they mounted wrong, and it was causing horrible rattling and drone in the whole car. In fact a screw was just touching the heat shield. That's probabably your problem.

Wires · 11-11-2021, 08:21 AM

Might not be the heat shield. You just need the exhaust riding up against the mid-brace.

If you look under the car from back to front (you can do this with the car on the ground), following the exhaust up to the engine, you can see if the exhaust is centered through that opening. Same deal if your DP was swapped, and allowed to get close to the engine.

B58Rocket · 11-18-2021, 02:32 PM

I had same issue, added big flat washers as spacers and it fixed the problem

Bmwerspeed123 · 11-18-2021, 07:13 PM

Quote:

Originally Posted by B58Rocket

I had same issue, added big flat washers as spacers and it fixed the problem

You added them to all the bolts/screws?

kevmk81 · 11-19-2021, 12:05 PM

I did the spacer thing at first but just realized that the midpipe needed to be rotated a bit and torqued properly - it was too loose and was rotating every so slowly out of place. With the spacers it kept creeping down and hitting the midbrace. I have an AWE exhaust as well but mine is on my 340i rwd.

ByByCop · 12-21-2021, 11:55 PM

Happened to me. Check all the bolts. No biggie.

11-09-2021, 10:30 PM	#1
Bmwerspeed123 Enlisted Member 0 Rep 46 Posts Drives: 320ixdrive Join Date: Jun 2021 Location: Chicago iTrader: (0)	Heat shield rattle? Installed new awe exhuast, now I hear rattling from below of center console/passenger side. Does anyone know where exactly the exhaust heat shield is located in a 2017 320i xdrive?
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11-10-2021, 08:43 AM	#2
weehe126 Brigadier General 1161 Rep 3,189 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	This is the B58 section. The exhaust is probably hitting something. Get under and take a look.
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11-11-2021, 03:07 AM	#3
vcx Second Lieutenant 82 Rep 203 Posts Drives: 340 xdrive MPPSK 6-manual Join Date: Oct 2019 Location: Europe iTrader: (0)	When I got my MPPSK exhaust installed by the official BMW dealer, they mounted wrong, and it was causing horrible rattling and drone in the whole car. In fact a screw was just touching the heat shield. That's probabably your problem. __________________ 340 xdrive 6MT - HJS catted DP - MPPSK - TU HPFP - 550i clutch - VAC monoball control arms - Eibach springs - H&R antiroll bars - AutoSolutions SSK - Brembo HP2000 pads Corvette C6 Z06 Z07
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11-11-2021, 08:21 AM	#4
Wires Brigadier General 1646 Rep 4,876 Posts Drives: 2016 340i xDrive Join Date: Apr 2008 Location: Calgary iTrader: (0)	Might not be the heat shield. You just need the exhaust riding up against the mid-brace. If you look under the car from back to front (you can do this with the car on the ground), following the exhaust up to the engine, you can see if the exhaust is centered through that opening. Same deal if your DP was swapped, and allowed to get close to the engine.
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11-18-2021, 02:32 PM	#5
B58Rocket Enlisted Member 32 Rep 39 Posts Drives: 440i coupe Estoril Blue Join Date: Dec 2019 Location: Dayton Oh iTrader: (0)	I had same issue, added big flat washers as spacers and it fixed the problem
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11-19-2021, 12:05 PM	#7
kevmk81 Private 7 Rep 58 Posts Drives: 2016 340i, 2016 Odyssey SE Join Date: Jan 2021 Location: Chatham, IL iTrader: (0)	I did the spacer thing at first but just realized that the midpipe needed to be rotated a bit and torqued properly - it was too loose and was rotating every so slowly out of place. With the spacers it kept creeping down and hitting the midbrace. I have an AWE exhaust as well but mine is on my 340i rwd.
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12-21-2021, 11:55 PM	#8
ByByCop Enlisted Member 5 Rep 39 Posts Drives: BMW 340i Join Date: Dec 2021 Location: Florida iTrader: (0)	Happened to me. Check all the bolts. No biggie.
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