question about which size pad I need

HeatJoey · 12-10-2023, 09:27 AM

so I want to swap out my son's m340 pads like I did on my m40. i got the powerstops and they're perfect. I see on their website they list them now for our MY 22 etc., but there are 2 options, 347mm and 372mm or something along those lines.

how do I easily find out which ones I have? I found the original sticker and it says "m sport brakes", so it's not the "m performance brakes" but I'm not 100% sure which one is which?

My guess would be the sport are the smaller ones but I'd like to confirm before ordering the wrong pads lol. can't seem to find that info easily anywhere.

also do the m340's have/need a wear sensor like my x3? I didn't see one offered on powerstop but I want to confirm that as well.

thanks if anyone knows these answers.

HeatJoey · 12-10-2023, 11:14 AM

I think I found it finally in a thread. Looks like the sport are in fact the smaller ones. Guess I could have measured when he gets home too lol.

peelerec · 12-10-2023, 11:20 AM

Correct, the standard M340i m sport brakes are the smaller ones.

HeatJoey · 12-11-2023, 08:03 AM

Quote:

Originally Posted by peelerec

Correct, the standard M340i m sport brakes are the smaller ones.

thank you for confirming this! and do you know if there is a wear sensor wire like on my x3 that needs to be replaced as well or the m340 doesn't have that?

jpowers36 · 12-11-2023, 08:35 AM

There is one for the front and one for the rear.

34356870349, 34356870354.

peelerec · 12-11-2023, 08:44 AM

Quote:

Originally Posted by HeatJoey

thank you for confirming this! and do you know if there is a wear sensor wire like on my x3 that needs to be replaced as well or the m340 doesn't have that?

I’m not 100% confident but I recall others mentioning there is in fact sensor that sends notification to idrive.

12-10-2023, 09:27 AM	#1
HeatJoey Major 1222 Rep 1,326 Posts Drives: '23 X3 M40i Join Date: Jan 2023 Location: Fort Lauderdale, FL iTrader: (0)	question about which size pad I need so I want to swap out my son's m340 pads like I did on my m40. i got the powerstops and they're perfect. I see on their website they list them now for our MY 22 etc., but there are 2 options, 347mm and 372mm or something along those lines. how do I easily find out which ones I have? I found the original sticker and it says "m sport brakes", so it's not the "m performance brakes" but I'm not 100% sure which one is which? My guess would be the sport are the smaller ones but I'd like to confirm before ordering the wrong pads lol. can't seem to find that info easily anywhere. also do the m340's have/need a wear sensor like my x3? I didn't see one offered on powerstop but I want to confirm that as well. thanks if anyone knows these answers. __________________ Current: '23 BMW X3 M40i (Also have a '22 M340i) Previous rides '23 MBW X3 30i, '22 Charger Hellcat Triple Nickel, '21 Charger Widebody Scat Pack F8, '21 DD R/T White, '19 Challenger Widebody Scat Pack B5; '19 Scat Pack F8, '18 Audi SQ5, '18 Daytona 392, '16 Scat Pack Granite, '15 Durango R/T Blacktop, '14 Volvo S60R Rebel Blue, '12 Audi Q5, '10 Mustang, '08 BMW E90 M3, '07 BMW 335I Active Autowerks
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12-10-2023, 11:14 AM	#2
HeatJoey Major 1222 Rep 1,326 Posts Drives: '23 X3 M40i Join Date: Jan 2023 Location: Fort Lauderdale, FL iTrader: (0)	I think I found it finally in a thread. Looks like the sport are in fact the smaller ones. Guess I could have measured when he gets home too lol. __________________ Current: '23 BMW X3 M40i (Also have a '22 M340i) Previous rides '23 MBW X3 30i, '22 Charger Hellcat Triple Nickel, '21 Charger Widebody Scat Pack F8, '21 DD R/T White, '19 Challenger Widebody Scat Pack B5; '19 Scat Pack F8, '18 Audi SQ5, '18 Daytona 392, '16 Scat Pack Granite, '15 Durango R/T Blacktop, '14 Volvo S60R Rebel Blue, '12 Audi Q5, '10 Mustang, '08 BMW E90 M3, '07 BMW 335I Active Autowerks
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12-10-2023, 11:20 AM	#3
peelerec Major 988 Rep 1,115 Posts Drives: 2022 M340i Mineral Grey Join Date: Nov 2021 Location: North Bay & Los Angeles iTrader: (0) Garage List 2022 BMW M340i [0.00]	Correct, the standard M340i m sport brakes are the smaller ones. __________________ Present: 2022 M340i Mineral Grey Past: 2019 330i, 2012 Evo X GSR
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12-11-2023, 08:35 AM	#5
jpowers36 Lieutenant 218 Rep 410 Posts Drives: 2020 BMW M340i xDrive Join Date: May 2021 Location: TN iTrader: (0)	There is one for the front and one for the rear. 34356870349, 34356870354. __________________ 2020 M340i xDrive - Mineral Grey Metallic/Cognac - MG Flasher Stage 2 OTS 93 \| XHP Stage 3 \| AA DP \| Valvemaster \| MST 2008 Infiniti G37S Coupe 6MT - Black/Black IG: jpowers36
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