Feedback on Beisan Vanos seals replacement

[Herbert]

I have fitted my beisan double vanos seals and so far has travelled about 1200km already. My car is E46 325i year 2004. My avg fuel consumption before is about 11.5L/100km and after installing the beisan seals, the fuel consumption has fluctuate from initial 12.8L/100km to current date of about 11.7L/100km. Also, there is some loss of power compared to before I change the beisan seals. Does anyforumers out there are facing this problem, especially from the double vanos engine owners?
In my opinion, I see there is no significant improvement by fitting this beisan seal for DOUBLE vanos engine or anyone wishes to comment?

I am quite surprised that you feel no improvement and high fuel consumption. Couple of questions..

1. Where did (workshop) you have your seals replaced?
2. Did the workshop used appropriate special tools for camshalf adjustments?

 

[Alex5522]

I have fitted my beisan double vanos seals and so far has travelled about 1200km already. My car is E46 325i year 2004. My avg fuel consumption before is about 11.5L/100km and after installing the beisan seals, the fuel consumption has fluctuate from initial 12.8L/100km to current date of about 11.7L/100km. Also, there is some loss of power compared to before I change the beisan seals. Does anyforumers out there are facing this problem, especially from the double vanos engine owners?
In my opinion, I see there is no significant improvement by fitting this beisan seal for DOUBLE vanos engine or anyone wishes to comment?

Bro,
I believe soon u will feel the low torque performance and it just a time factor.

 

[initialM]

Did the workshop used appropriate special tools for camshalf adjustments?

Yup special tools needed and it is different for single, double vanos & magnesium engine. These tools are not cheap & not all workshop can afford to have them. My mech got all 3 sets hehehe

 

[bmw7833]

I didnt feel any improvement too after replaced the seal, plan to re-do. Mine is single vanos engine.

 

[Daiichi]

I changed it quite a while ago. Initially i see that the fuel consumption is rather high but the Beisan website recommended the break in period to be about 300 kms. I've got more that that mileage and is still giving me 11.7L/100km consumption. what's the average consumption that you should achieve? Most importantly my driving style has not changed before and after, and the road conditions are city area driving, lots of stop and go traffic lights.
Jarance, also there is a vanos exhaust fault showing in the DME which keeps appearing even after clearing the fault using diagnostic tool.
sigh....what seems to be the problem. In fact I think my car is in better shape prior to changing the seals. Does anyone recently change their Double vanos beisan seal having this issue?

 

[Daiichi]

I am quite surprised that you feel no improvement and high fuel consumption. Couple of questions..

1. Where did (workshop) you have your seals replaced?
2. Did the workshop used appropriate special tools for camshalf adjustments?

Herbert....ans 1) workshop i used is recommended by you...posted in the forum.
ans 2) see answer 1

 

[jarance]

daiichi, what is the DME fault code?

 

[Daiichi]

Bro,
I believe soon u will feel the low torque performance and it just a time factor.

Bro Alex5522,

Mind to share with me the avg fuel consumption are you getting before and after and your road driving condition? I.e. City/urban/highway?

 

[Daiichi]

daiichi, what is the DME fault code?

can't remember the code but it says something like "the exhaust not reaching end" You know what this means?

 

[jarance]

The last time I scan your car, I have logged the error on 27th Nov 2010. Does it have the same problem as listed.

# ERRORS DETAILS - DTC(hex)/PARAM(hex)
---------------------------------------------------------------------------------------------------------------------------
DME -> 6A/B8 - Exhaust camshaft, VANOS blocked or stiff
68/B8 - Exhaust camshaft, VANOS end position not reached, adaptation value outside tolerance
7B/B1 - Signal, characteristic map cooling, short circuit to positive

Shadow-memory:
6A/B8 - Exhaust camshaft, VANOS blocked or stiff
68/B8 - Exhaust camshaft, VANOS end position not reached, adaptation value outside tolerance
7B/B1 - Signal, characteristic map cooling, short circuit to positive
5A/12 - Exhaust temperature before catalyst, bank 1, signal line, short circuit to negative
5B/12 - Exhaust temperature before catalyst, bank 2, signal line, short circuit to negative
5D/12 - Exhaust temperature after catalyst, bank 2, signal line, short circuit to negative
34/02 - Solenoid valve, exhaust flap, short circuit to negative or open circuit

 

[Daiichi]

yes, i think it is the same error when you last scanned it. That time you scan my car, i think my break in mileage for the seals was only about 200+ kms.

 

[Alex5522]

Bro Alex5522,

Mind to share with me the avg fuel consumption are you getting before and after and your road driving condition? I.e. City/urban/highway?

Bro,
My driving was 70% city drive and 30% hway, before changing the seal my $100 ron 97 very hard to get 500km. Now days i can get 550-600km. Btw my was 320i M52 engine. What is yours ?

 

[Daiichi]

bro Alex5522,
i use about RM120 ron 97 for about 520-550km. my car is 325i.

 

[initialM]

Just fill up my 328 RM89 of Ron 95 BHP can get 410km. Bout 21.7 cents per km. 90% city 10% hiway.
Most of the time rempit. If u wanna check fuel consumption must monitor as accurate as possible not just about.
Then you can know anything wrong wt the car. Fill up full tank. Set mileage counter to zero. Then next fill up get the
consumption divide by the mileage done.

 

[Herbert]

Herbert....ans 1) workshop i used is recommended by you...posted in the forum.
ans 2) see answer 1

Daiichi,

You better send your car back to the workshop that replaced your vanos seals and have them check why the error codes appeared and have it rectify. Let me know if you need help on this.

 

[IanDaddy]

Daiichi,

Could it be the Vanos solenoid ? Do they have to remove the solenoid when replacing the seals, if yes they may have installed it wrongly.

 

[Daiichi]

herbert, tks
i will go back to the workshop to get it checked again.

 

[Daiichi]

Yes, i will ask the workshop to inspect the solenoid if there is any misfitting. Anyway how do you tell if it is fitted wrongly?

 

[jarance]

daiichi.. apparently, you are not the only person facing this problem before.

refer to e46fanatic forum below.

http://forum.e46fanatics.com/archive/index.php/t-766590.html

 

[johnj]

my e39 double vanos m54b25 no problems at all..changed at optimum