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2008 E90 323I advice please!
09-01-2019, 03:01 PM
Post: #1
2008 E90 323I advice please!
Hi All

My 2008 323I have been giving me hassles, Of anyone had the same issue please advise.

In the mornings on commute to work the car pulls as normal (yes i know . . .For a 323 atleast) If during my commute i stop and switch the car off for 10min whilst running in a the shop for some drinks and start it up the throttle response is gone, the car is very hesitant to accelerate, and the revs takes is slow to return to idle when approaching a traffic light with the clutch in.

Now, i went to 3 dealers including the only bmw dealer we have locally and every time its costing me more and more cash without the problem getting resolved.

Whats been done is, Vanos solonoids have been cleaned including the filters (Twice) Oil changed 3 times. Valve/tappet cover replaced for a small fee of 7k and cleaned the MAF sensor. Car still does the same.

When this happens i notice way more pops out the exhaust as if the car is running rich, When i pull over, switch the car off and start it again its fine. By now ive spend almost 12k on getting this fixed with no joy.

Is this a vacuum leak? Still have dirty vanos solonoid filters? Fuel pump? Im lost and your help will be appreciated as BMW dealer wants to replace the whole head for 60 - 80K to fix the issue.
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09-01-2019, 10:52 PM
Post: #2
RE: 2008 E90 323I advice please!
Any codes coming up

AKASH
Masstronix E90 335i AT Sportpack (JB4, DP, DCI. Race flash 275wkw @652NM at KAR)
E90 323i Sportpack
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10-01-2019, 07:57 AM (This post was last modified: 10-01-2019 07:57 AM by husaindindar.)
Post: #3
RE: 2008 E90 323I advice please!
As above, check codes first.


The problem you are having is almost exactly what I had few years back. Hesitant revs, slow hesitant gear changes, pops at exhaust etc. The codes thrown were for Vanos bank 1 over retard.
CLEANING THE SOLENOIDS DID NOT HELP!
I have seen many people have the problem and cleaning them did not help.

Replacing both fixed my issues.

I've walked the walk...
Now I talk the talk...
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10-01-2019, 12:48 PM
Post: #4
RE: 2008 E90 323I advice please!
It’s more than likely the solenoids and will need replacement, cleaning won’t help

Current Rides: E92 M3, E36 M3, E36 323i, E30 325i
Ex Mistress's:
E92 325i: Navara 2.5Dci: Navara 4.0: Cora’s UTE: E36 328i Cabrio: E92 M3: E39 540: E39 528i: E46 330i: 2x E36 328i Cabrio's: E36 328i: E46 M3: E36 318is: E36 328i: E46 318i: E46 M3: E46 330d: E90 330i: E46 330i: E90 320d: E46 330i: E90 335i: E46 330i: E46 323Ci: E36 318i: E36 325i: Honda Ballade 150i: Toyota RXI: Ford Fiesta 1.4i: VW Jetta 1.8 MKII: Merc 230E
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10-01-2019, 12:51 PM (This post was last modified: 10-01-2019 12:53 PM by SubLoaded.)
Post: #5
RE: 2008 E90 323I advice please!
They're R1200 each from Masterparts. BMW sell them for R2600 each.

Scan the car first before buying anything Thumbs

Current: E92 325i M LCI
Current: Audi A4 B8.5 1.8T
Ex: E90 323i Exclusive LCI
Ex: E90 320i Individual LCI

[Image: naman_5196753591_3577692508.png]
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10-01-2019, 03:18 PM
Post: #6
RE: 2008 E90 323I advice please!
(10-01-2019 07:57 AM)husaindindar Wrote:  As above, check codes first.


The problem you are having is almost exactly what I had few years back. Hesitant revs, slow hesitant gear changes, pops at exhaust etc. The codes thrown were for Vanos bank 1 over retard.
CLEANING THE SOLENOIDS DID NOT HELP!
I have seen many people have the problem and cleaning them did not help.

Replacing both fixed my issues.

[Image: error codes_9563779570.jpg]

Mostly also vanos codes, cleaned them swopped around, no joy.
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10-01-2019, 03:21 PM
Post: #7
RE: 2008 E90 323I advice please!
(10-01-2019 03:18 PM)Waynethelame Wrote:  Mostly also vanos codes, cleaned them swopped around, no joy.

Don't waste your time cleaning and swapping. If it does work - you're just buying yourself some time. The part will fail eventually.

I have gone through this on two N52's now.

Current: E92 325i M LCI
Current: Audi A4 B8.5 1.8T
Ex: E90 323i Exclusive LCI
Ex: E90 320i Individual LCI

[Image: naman_5196753591_3577692508.png]
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10-01-2019, 03:21 PM
Post: #8
RE: 2008 E90 323I advice please!
(10-01-2019 12:51 PM)SubLoaded Wrote:  They're R1200 each from Masterparts. BMW sell them for R2600 each.

Scan the car first before buying anything Thumbs

What a bummer as my car has a extended warranty which ends tomorrow and al 3 Mechanics went to other faults instead of solonoids.

Tanks alot for your replies!
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10-01-2019, 03:32 PM
Post: #9
RE: 2008 E90 323I advice please!
(10-01-2019 03:21 PM)Waynethelame Wrote:  
(10-01-2019 12:51 PM)SubLoaded Wrote:  They're R1200 each from Masterparts. BMW sell them for R2600 each.

Scan the car first before buying anything Thumbs

What a bummer as my car has a extended warranty which ends tomorrow and al 3 Mechanics went to other faults instead of solonoids.

Tanks alot for your replies!



What faults came up?

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Now I talk the talk...
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11-01-2019, 07:55 AM (This post was last modified: 11-01-2019 08:00 AM by Waynethelame.)
Post: #10
RE: 2008 E90 323I advice please!
(10-01-2019 03:32 PM)husaindindar Wrote:  
(10-01-2019 03:21 PM)Waynethelame Wrote:  
(10-01-2019 12:51 PM)SubLoaded Wrote:  They're R1200 each from Masterparts. BMW sell them for R2600 each.

Scan the car first before buying anything Thumbs

What a bummer as my car has a extended warranty which ends tomorrow and al 3 Mechanics went to other faults instead of solonoids.

Tanks alot for your replies!



What faults came up?

Check above diagnostics from BMW dealer. Although these came up prior to replacing the valve/tappet cover.

My car went in today to replace the Vanos solonoids, warranty covers 6K on them although the mechanic quoted +-10K per vanos unit.

I then asked them to replace the solonoids only as i have no idea what the whole unit entails and 10K per unit is ridiculous.

Will keep the threat updated if this resolved the problem when i get my car back.
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11-01-2019, 08:02 AM
Post: #11
RE: 2008 E90 323I advice please!
IMO, I think there's 2 faults based on the diagnostics.

Im very sure the vanos solenoids are cooked. Also theres a DISA thats also faulty.

The vanos is whats causing the biggest problems.
The disa fault will just have a code and affect performance slightly.

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Now I talk the talk...
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11-01-2019, 08:55 AM
Post: #12
RE: 2008 E90 323I advice please!
(11-01-2019 08:02 AM)husaindindar Wrote:  IMO, I think there's 2 faults based on the diagnostics.

Im very sure the vanos solenoids are cooked. Also theres a DISA thats also faulty.

The vanos is whats causing the biggest problems.
The disa fault will just have a code and affect performance slightly.

Someone rebuilding a 525I mentioned the DISA also. This sounds like a rabbit hole. I see they are not that expensive to replace but can it be cleaned?

Now that you mentioned that, the though will always be there "performance is slightly affected" Skit
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11-01-2019, 09:29 AM (This post was last modified: 11-01-2019 09:30 AM by husaindindar.)
Post: #13
RE: 2008 E90 323I advice please!
(11-01-2019 08:55 AM)Waynethelame Wrote:  
(11-01-2019 08:02 AM)husaindindar Wrote:  IMO, I think there's 2 faults based on the diagnostics.

Im very sure the vanos solenoids are cooked. Also theres a DISA thats also faulty.

The vanos is whats causing the biggest problems.
The disa fault will just have a code and affect performance slightly.

Someone rebuilding a 525I mentioned the DISA also. This sounds like a rabbit hole. I see they are not that expensive to replace but can it be cleaned?

Now that you mentioned that, the though will always be there "performance is slightly affected" Skit



It's not a rabbit hole. These are solid motors.

Start with the vanos solenoids. Maybe try swapping solenoids with a friend that has a 323/25/30 (same solenoids), if the cost risk is too much to bear.


DISA flaps from dealers are very expensive. Close to 6k. They cannot be cleaned. Tackle that after the Vanos.
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SubLoaded
11-01-2019, 09:47 AM
Post: #14
RE: 2008 E90 323I advice please!
(11-01-2019 09:29 AM)husaindindar Wrote:  
(11-01-2019 08:55 AM)Waynethelame Wrote:  
(11-01-2019 08:02 AM)husaindindar Wrote:  IMO, I think there's 2 faults based on the diagnostics.

Im very sure the vanos solenoids are cooked. Also theres a DISA thats also faulty.

The vanos is whats causing the biggest problems.
The disa fault will just have a code and affect performance slightly.

Someone rebuilding a 525I mentioned the DISA also. This sounds like a rabbit hole. I see they are not that expensive to replace but can it be cleaned?

Now that you mentioned that, the though will always be there "performance is slightly affected" Skit



It's not a rabbit hole. These are solid motors.

Start with the vanos solenoids. Maybe try swapping solenoids with a friend that has a 323/25/30 (same solenoids), if the cost risk is too much to bear.


DISA flaps from dealers are very expensive. Close to 6k. They cannot be cleaned. Tackle that after the Vanos.

The solonoids are getting replaced today. Dont think i ever experience my car performing like it should so i wont notice if the DISA valve is giving issues, what is the error related to the DISA valve that i can look out for?
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11-01-2019, 10:20 AM
Post: #15
RE: 2008 E90 323I advice please!
(11-01-2019 09:47 AM)Waynethelame Wrote:  
(11-01-2019 09:29 AM)husaindindar Wrote:  
(11-01-2019 08:55 AM)Waynethelame Wrote:  
(11-01-2019 08:02 AM)husaindindar Wrote:  IMO, I think there's 2 faults based on the diagnostics.

Im very sure the vanos solenoids are cooked. Also theres a DISA thats also faulty.

The vanos is whats causing the biggest problems.
The disa fault will just have a code and affect performance slightly.

Someone rebuilding a 525I mentioned the DISA also. This sounds like a rabbit hole. I see they are not that expensive to replace but can it be cleaned?

Now that you mentioned that, the though will always be there "performance is slightly affected" Skit



It's not a rabbit hole. These are solid motors.

Start with the vanos solenoids. Maybe try swapping solenoids with a friend that has a 323/25/30 (same solenoids), if the cost risk is too much to bear.


DISA flaps from dealers are very expensive. Close to 6k. They cannot be cleaned. Tackle that after the Vanos.

The solonoids are getting replaced today. Dont think i ever experience my car performing like it should so i wont notice if the DISA valve is giving issues, what is the error related to the DISA valve that i can look out for?


Sometimes the disa flap guide wears out, so it just flaps around as you accelerate. Its audible and can be felt on acceleration.
Code wise its the 2AA8

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Now I talk the talk...
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11-01-2019, 01:17 PM
Post: #16
RE: 2008 E90 323I advice please!
(11-01-2019 10:20 AM)husaindindar Wrote:  
(11-01-2019 09:47 AM)Waynethelame Wrote:  
(11-01-2019 09:29 AM)husaindindar Wrote:  
(11-01-2019 08:55 AM)Waynethelame Wrote:  
(11-01-2019 08:02 AM)husaindindar Wrote:  IMO, I think there's 2 faults based on the diagnostics.

Im very sure the vanos solenoids are cooked. Also theres a DISA thats also faulty.

The vanos is whats causing the biggest problems.
The disa fault will just have a code and affect performance slightly.

Someone rebuilding a 525I mentioned the DISA also. This sounds like a rabbit hole. I see they are not that expensive to replace but can it be cleaned?

Now that you mentioned that, the though will always be there "performance is slightly affected" Skit



It's not a rabbit hole. These are solid motors.

Start with the vanos solenoids. Maybe try swapping solenoids with a friend that has a 323/25/30 (same solenoids), if the cost risk is too much to bear.


DISA flaps from dealers are very expensive. Close to 6k. They cannot be cleaned. Tackle that after the Vanos.

The solonoids are getting replaced today. Dont think i ever experience my car performing like it should so i wont notice if the DISA valve is giving issues, what is the error related to the DISA valve that i can look out for?


Sometimes the disa flap guide wears out, so it just flaps around as you accelerate. Its audible and can be felt on acceleration.
Code wise its the 2AA8

Thanks for the awesome info!
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14-01-2019, 11:12 AM (This post was last modified: 14-01-2019 11:13 AM by Waynethelame.)
Post: #17
RE: 2008 E90 323I advice please!
Update: Car went in on Friday, they could not replicate the problem while the car was there, This weekend the car did the same and this morning all was fine until i poped into the shops, soon as i started the car it misfired, died and after struggling to start it has a misfire.

Took it back to the dealer today and hopefully this time the car gets sorted. omg waiting
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19-02-2019, 12:20 PM
Post: #18
RE: 2008 E90 323I advice please!
Update: My car went in to get the Exhaust Vanos gear replaced and timing redone. 8K later and . . .

After 20 mins drive same as before and they took 3 days to replace the part.

Could this still be the Vanos filters getting clogged up? As when i turn the car off and back on at a traffic light throttle response is back and the car pulls.

I want to go back to the dealer but i already know the answer. . . Bring the car in and we can have a look, the look amounts to $$$$

Already spend 20K now. #gatvol
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19-02-2019, 01:17 PM
Post: #19
RE: 2008 E90 323I advice please!
that would break my spirit...good luckBlueCry
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19-02-2019, 01:27 PM
Post: #20
RE: 2008 E90 323I advice please!
I feel your pain especially as they are throwing parts at it.

The truth is incontrovertible, malice may attack it, ignorance may deride it, but in the end, there it is. ~ Winston Churchill


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