Z3M S50 /no kick of power

[Z3Mroadster]

Hello!


My car sometimes(in 50% cases) don't have kick of power on 2500/3000 and again on 5000 rpm...
Vanos was rebuild before 15.000 km.


Any idea?

 

[Low Rider]

@Nodzed @Lee @t-tony
I wonder if any of these guys would be able to help

 

[Jack Ratt]

Have you tried a code reader to check engine codes

 

[Nodzed]

Front Vanos seals? when were they last done I was advised after the upgrade/rebuild to replace them about every 3 years, easy job to do

 

[Z3Mroadster]

No codes.
Before is only error 155 master fault memory.
This is fix.

 

[Z3Mroadster]

Front Vanos seals? when were they last done I was advised after the upgrade/rebuild to replace them about every 3 years, easy job to do

Solenoids seals?

 

[mrscalex]

DISA?

 

[Z3Mroadster]

Vanos is rebuilding before 3 years/15.000 km...With DR.Vanos.

Seals are of Viton?

 

[Z3Mroadster]

DISA?

Disa???

 

[Nodzed]

Solenoids seals?

Yep thats the ones, stand in front of the Vanos with the engine running and get someone to turn it off you should here a pist sound as the pressure releases if not then could be the solenoid seals

 

[Z3Mroadster]

Yep

BMW OEM seals or?
This problem was also when the vanos is rebuild-immediately.

 

[Nodzed]

BMW OEM seals or?
This problem was also when the vanos is rebuild-immediately.

Mine was done in the UK by Mr. Vanos he doesn't use OEM seals as they fail, he suggested the replacement of the solenoid seals after approx 3 years and will supply them, keeping the solenoids in tip top shape keeps the PSI where you need it. If this problem was there after the rebuild then it may be a bad rebuild or another issue. Not really sure what to advise.

 

[Z3Mroadster]

Mine was done in the UK by Mr. Vanos he doesn't use OEM seals as they fail, he suggested the replacement of the solenoid seals after approx 3 years and will supply them, keeping the solenoids in tip top shape keeps the PSI where you need it. If this problem was there after the rebuild then it may be a bad rebuild or another issue. Not really sure what to advise.

Bad timing?
But vanos test is OK and pressure is 100 bar in idle(warm)!Strange.

 

[Z3Mroadster]

Yep thats the ones, stand in front of the Vanos with the engine running and get someone to turn it off you should here a pist sound as the pressure releases if not then could be the solenoid seals

I will check pist sound..
Can I test solenoids-click with 9V battery and some wires?

 

[Nodzed]

I will check pist sound..
Can I test solenoids-click with 9V battery and some wires?

Dont know sorry

 

[Z3Mroadster]

Dont know sorry

There is pist sound(1-2 s)...

 

[Nodzed]

There is pist sound(1-2 s)...

Well the Vanos is working at the correct or close to the correct pressure then so chances are your problem is elsewhere I'm guessing

 

[Z3Mroadster]

Well the Vanos is working at the correct or close to the correct pressure then so chances are your problem is elsewhere I'm guessing

Maybe solders of solenoids,or wiring?Or resistance?

 

[Nodzed]

Worth checking the camshaft sensor connector, is it plugged in properly or dirty or break in the wire

 

[Z3Mroadster]

Worth checking the camshaft sensor connector, is it plugged in properly or dirty or break in the wire

I check only exhaust sensor.Wire ok and I cleaning with brake cleaner...