[Palica99]

Hello everyone,

I have been experiencing power loss on my BMW 440i 2016 with the B58 engine since yesterday.

The following key data to understand.

130,000 km
YEAR OF MANUFACTURE 2016
MHD Stage 1 on 102 octane RON

For 1 week I have felt fluctuations when driving (felt as if you were constantly driving over bumps). I then logged my data with MHD and realized that my VANOS actuators were gone. So I ordered new ones and painfully replaced them. After that, the fluctuations were gone and according to MHD, VANOS is running great again. The only thing I noticed after the replacement were three errors when reading out the data.

DME active codes:
130715 VANOS solenoid valve intake:
Camshaft jammed

DME shadow (inactive) codes:
132201 VANOS solenoid valve intake:
Collector error

132301 VANOS: Collector error

Error deleted and since then no new error message in the control unit.

After changing the actuators, I noticed when accelerating that the performance is weaker than before. So it feels like the car sometimes can't build up any boost under full load and therefore accelerates without turbo.

I don't know if it's maybe due to the sealing rings of the actuators and the system is therefore drawing air or if it's something else.

Here is my log drive for approx. 5 min with a few full load moments.

https://datazap.me/u/palica99/log-17...og=0&data=5-25

I hope you can help me here before I have to go to BMW and he sends me away because there is no error code.

Thanks

[g340ix]

have you tried resetting the vanos adaptations?

if the seals we're blown you'd have oil down the back of the engine, you would definitely know

[Palica99]

no, i didnt reset the vanos adaptions. BMW says that after the replacement of the actuators you dont need to reset the adaptions.
But i think it is worth a try.

What do i have to watch out for when i reset the adaptation?

[Skyhigh]

Suggest you do a proper log to start with. This will allow us to see if there are any abnormalities caught there. The log you provided is unusable.
This is how to make a proper log:
https://f30.bimmerpost.com/forums/sh....php?t=1648722

[Palica99]

Originally Posted by Skyhigh

Suggest you do a proper log to start with. This will allow us to see if there are any abnormalities caught there. The log you provided is unusable.
This is how to make a proper log:
https://f30.bimmerpost.com/forums/sh....php?t=1648722

Thanks i will do it later and post it here.

[Skyhigh]

Make sure you start WOT at about 2500 RPM (not earlier) and keep 100% throttle up until about 6500.

[Palica99]

Originally Posted by Skyhigh

Make sure you start WOT at about 2500 RPM (not earlier) and keep 100% throttle up until about 6500.

I just did two pulls from 2500 RPM till 6500.

https://datazap.me/u/palica99/first-...og=0&data=3-16

https://datazap.me/u/palica99/second...og=0&data=3-16

I hope this helps.

[blacksapphire440i]

Originally Posted by Palica99

I just did two pulls from 2500 RPM till 6500.

https://datazap.me/u/palica99/first-...og=0&data=3-16

https://datazap.me/u/palica99/second...og=0&data=3-16

I hope this helps.

Your logs look clean other than the fact that your car is hitting a 131072 torque limiter at certain points of the RPM band. This could be due to load actual being higher than load requested

Are you doing these logs in traction fully off or on?

[Skyhigh]

Originally Posted by blacksapphire440i

Your logs look clean other than the fact that your car is hitting a 131072 torque limiter at certain points of the RPM band. This could be due to load actual being higher than load requested

Are you doing these logs in traction fully off or on?

I'd even say "suspiciously clean", for pump fuel and no Ethanol!

[Palica99]

Originally Posted by blacksapphire440i

Your logs look clean other than the fact that your car is hitting a 131072 torque limiter at certain points of the RPM band. This could be due to load actual being higher than load requested

Are you doing these logs in traction fully off or on?

Its only in Sport+ (Sport Traction not completly off)
I dont know i feel like after the replacement im missing at least 50hp and around 50-100 newtonmeter.

After the Pulls i realized that i have low torque around 2000-3500 rpm. After that the boost kicks in.

What causes the load beeing higher then requested? And can my evap valve cause a loss of power?

[Palica99]

Originally Posted by Skyhigh

I'd even say "suspiciously clean", for pump fuel and no Ethanol!

Its currently on Stage 1 MHD with 102 Octan/RON (German Quality)

[Skyhigh]

Yes, but it is extremely rare to see matching fuel octane and OTS map run so clean. The Aral Ultimate is also known to not always be as good as one hopes and usually the 102 OTS map is more aggressive than the fuel, forcing many to still add E to have it run so clean.
I've never seen such a clean log on pure Aral RON 102 in my car (on a 102 RON map), although I must admit I have always used it on Stage 2 or Stage 2 HPFP, never Stage 1.

[Palica99]

Originally Posted by Skyhigh

Yes, but it is extremely rare to see matching fuel octane and OTS map run so clean. The Aral Ultimate is also known to not always be as good as one hopes and usually the 102 OTS map is more aggressive than the fuel, forcing many to still add E to have it run so clean.
I've never seen such a clean log on pure Aral RON 102 in my car (on a 102 RON map), although I must admit I have always used it on Stage 2 or Stage 2 HPFP, never Stage 1.

Yeah i was shocked, after i flashed Stage 1. The car felt like a rocket in 2nd and 3th Gear.

I just dont know why my torque is now limited at 500. Befor the replacement i had around 550 - 580 Nm.

Cant explain why

[gantona]

If you have ista, you can run a vanos solenoid test, where the computer move to different position and you can see how fast the solenoid move.
If green ok
You you can see red it’s not

[Palica99]

Originally Posted by gantona

If you have ista, you can run a vanos solenoid test, where the computer move to different position and you can see how fast the solenoid move.
If green ok
You you can see red it’s not

Thank you i ordered ISTA, im waiting on the license to activate.

[Palica99]

I just wrote MHD and then confirmed that the map and the log is flawless.
So no problems and i have full power and torque.

the 500Nm in the log is to dismiss, because of the fact that MHD scales the torque down so that the TCU dont go into limiter.

So everything is alright. Thank you all for your help!

[Skyhigh]

You don’t have xHP!?

[Palica99]

Originally Posted by Skyhigh

You don’t have xHP!?

Not yet. But i flashed Stage 0+ now until i get xHP.

do i need to flash xHP first and then select MHD Stage 1 with the xHP Transmission or the other way?

[Skyhigh]

You don't need to be on Stage 0+ until you get xHP but it explains the low reported torque values. This will change once you have xHP.
It does not really matter in what order you do things but ideally first xHP then reflash MHD.

[Palica99]

Originally Posted by Skyhigh

You don't need to be on Stage 0+ until you get xHP but it explains the low reported torque values. This will change once you have xHP.
It does not really matter in what order you do things but ideally first xHP then reflash MHD.

Yeah thats what MHD said too. Alright i will wait some day till i have enough Money to spend it on xHP