E46 M3 S54 Vanos pressure tests

[George Hill]

I put a brand new unit on a car a couple weeks ago, made 115bar.

[Shonky]

I put a brand new unit on a car a couple weeks ago, made 115bar.

Was that once oil is up to temp?

[bigjae46]

I put a brand new unit on a car a couple weeks ago, made 115bar.

Have prices on new units fallen? Out of curiosity I checked what one cost - seeing $1400ish? I thought these were $3k. I might buy one as an investment, sell it for $10k in 10 years. 🤣

[George Hill]

Was that once oil is up to temp?

Of course

[George Hill]

Have prices on new units fallen? Out of curiosity I checked what one cost - seeing $1400ish? I thought these were $3k. I might buy one as an investment, sell it for $10k in 10 years. 🤣

Beisan Systems has a good deal on them, I buy them 3x at a time.

[Schnout]

It shouldn't take long for the vanos pump to build up pressure in the ACC before driving, so I'm not sure why the need to have shut off solenoid. This is useful for the SMG as it save the electric pump wear and tear, but vanos pump runs all the time anyway.

FYI... the SMG system will always initiate an accumulator charge cycle when you unlock a door, open a door, or even look at the car ;-) - unless, for some strange reason the accumulator has held pressure during engine shutdown. Having run my SMG for 80,000 miles...fifteen years... and several thousand starts... I've heard that pump cycle every single time it thought I might want to drive it...