Is a DSC(non-TPM) based pressure monitoring system bad for non-RFT tires ?

cstavaru · 07-22-2010, 05:47 AM

Ok, so I am a bit worried about one thing: my car does not have a TMPS based pressure monitoring system, it relies on the DSC to detect pressure loss (the affected wheel spins faster thus it is detected by the DSC) and I am about to mount my first non-runflat tires.

I have a feeling that this system takes a longer time to report tire pressure loss than a TPM system (with pressure sensors inside the tires).

When using non-runflat tires, this may mean alot: the non-RFT tire could already be damaged until you get a flat-tire notice.

What do you think ?

EDIT: Sorry, I didn't realize I was in the wrong forum when posting...please move it to Wheels/Tires forum.

enrita · 07-22-2010, 07:46 AM

no, been running this way for 1 year and works fine. I also tested it by letting some air out of 1 tyre and detected it straight away.

anerbe · 07-22-2010, 09:32 AM

my e46 m3 had the DSC based Tire sensor, and they come stock with non-runflats.

worked fine. besides requiring you to visually check each tire to determine if one is running a bit low, it's pretty responsive. just make sure you reset it properly when all the tires are at a proper pressure.

shifterboy45 · 07-22-2010, 01:19 PM

the RDC is pretty accurate, vs the actual TPMS

remember the DSC has to respond quickly enough to circumvent wheel spin in microseconds ... how much easier is it to analyze rotational values between wheels and trigger a system message???

rismo · 07-22-2010, 02:01 PM

It's not a problem. my car detected air lose before I felt it myself....

Running normal tyres for the last 99000 km ;-)

07-22-2010, 05:47 AM	#1
cstavaru Brigadier General 328 Rep 3,262 Posts Drives: 2009 335i M Sport Sedan 6MT Join Date: Aug 2008 Location: Bucharest, Romania iTrader: (0)	Is a DSC(non-TPM) based pressure monitoring system bad for non-RFT tires ? Ok, so I am a bit worried about one thing: my car does not have a TMPS based pressure monitoring system, it relies on the DSC to detect pressure loss (the affected wheel spins faster thus it is detected by the DSC) and I am about to mount my first non-runflat tires. I have a feeling that this system takes a longer time to report tire pressure loss than a TPM system (with pressure sensors inside the tires). When using non-runflat tires, this may mean alot: the non-RFT tire could already be damaged until you get a flat-tire notice. What do you think ? EDIT: Sorry, I didn't realize I was in the wrong forum when posting...please move it to Wheels/Tires forum. __________________ Mods(click): Cobb + RB Turbos \| Aquamist HFS-4 Meth \| Drexler LSD \| Bilstein B12 Pro-Kit \| Custom K&N Apollo Intake \| Wagner Intercooler \| Macht Schnell Downpipes \| BMW Performance Power Kit \| BMW Performance Exhaust \| BMW Performance Short Shifter \| M3 Subframe Bushings \| Last edited by cstavaru; 07-22-2010 at 06:41 AM..
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07-22-2010, 07:46 AM	#2
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	no, been running this way for 1 year and works fine. I also tested it by letting some air out of 1 tyre and detected it straight away. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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07-22-2010, 09:32 AM	#3
anerbe Lieutenant Colonel 124 Rep 1,567 Posts Drives: Red E90M 6MT Join Date: Dec 2006 Location: BH, MI iTrader: (2)	my e46 m3 had the DSC based Tire sensor, and they come stock with non-runflats. worked fine. besides requiring you to visually check each tire to determine if one is running a bit low, it's pretty responsive. just make sure you reset it properly when all the tires are at a proper pressure.
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07-22-2010, 01:19 PM	#4
shifterboy45 Major 23 Rep 1,179 Posts Drives: 2009 335i Coupe Join Date: Feb 2009 Location: North by Northwest iTrader: (0)	the RDC is pretty accurate, vs the actual TPMS remember the DSC has to respond quickly enough to circumvent wheel spin in microseconds ... how much easier is it to analyze rotational values between wheels and trigger a system message???
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07-22-2010, 02:01 PM	#5
rismo Captain 81 Rep 911 Posts Drives: BMW E92 335 Join Date: Jul 2008 Location: Europe iTrader: (0)	It's not a problem. my car detected air lose before I felt it myself.... Running normal tyres for the last 99000 km ;-) __________________ BMW 335 E92 09 - Full options - DKG - MHD by Buraq - RB Next Gen - RB Inlets/Outlet - Forge Diverter Valves - AR Catless DP - Afe Intake - Helix IC - FuelIT Stage 2 LPFP - Ar Oil Cooler - PPK Water Cooler - M3 Suspension - JRZ RS1 Shocks - Eibach Pro Springs - Drexler LSD - BMW IS Exhaust - Carbon Endurance Brake Pads - Stainless Steel Brake Lines - M101 Wheels - Michelin PS2 - M-Tech Body - M-Strutbar BMW M550i G30 2019 - BM3
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