Vanos??????

Euro_E30 · 10-06-2002, 05:12 PM

Could someone please tell me what is vanos. and when they started using it!

**EMPOWERD** · 10-07-2002, 02:38 PM

The VANOS system is based on an adjustment mechanism that can modify the position of the intake camshaft versus the crankshaft. Double-VANOS adds an adjustment of the intake and outlet camshafts.... (variable cam timing). It was offered in the '93 and the double VANOS came in the Euro 3.2L M3 ('96+) and all M54 motors.

Jon@Bimmersport · 10-07-2002, 05:15 PM

german version of vtec...and more complicated! works better cuz its always running, as the vtec motors only use vtec from a certain rpm range..and only activated at a certain temperature, u wudnt wanna use a lot more aggressive camshaft profiles when the engine is cold!

**EMPOWERD** · 10-07-2002, 10:42 PM

NO, NO, NO!!!

It's not even close to VTEC. BMW's VANOS changes the cam timing (rotates the cam to advance or retard timing). Vtech used totally different cam lobes at a specific RPM (oil pressure changes it - not the ECU like BMW). The brand new 1.7L Honda motors in the new 2002 cars have VTEC-i. The "i" is similar to VANOS were it adjusts the cam timing.

Jon@Bimmersport · 10-08-2002, 12:15 AM

Quote:

Originally posted by empowerd
NO, NO, NO!!!

It's not even close to VTEC. BMW's VANOS changes the cam timing (rotates the cam to advance or retard timing). Vtech used totally different cam lobes at a specific RPM (oil pressure changes it - not the ECU like BMW). The brand new 1.7L Honda motors in the new 2002 cars have VTEC-i. The "i" is similar to VANOS were it adjusts the cam timing.

i knew that....

hehe, no really..so is it like vanos is constantly working all the time?

bmwm5lover · 12-29-2002, 10:38 PM

a very very simple explanation i got from a BMW sales guy is that VANOS increases Performance by about 10% while decresing consumption by about 10%.
But Randy is very right!

avaispatel · 09-28-2007, 09:01 AM

I have a 94 325i, im trying to figure out if it has vanos, can anyone help? I know it was introduced in 93 but on 5 series is all it says everywhere i read, when did it appear on the 3 series or is there a way to check on my vin?

NateoriouS · 09-28-2007, 12:32 PM

yes you have Vanos..!

but just to verify.. check your engine for this..!!

if you have this "hump" you have Vanos..