Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.

My 23i has become a bit sluggish

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
Post Reply
Guitarman
Newbie
Newbie
Posts: 29
Joined: Mon Jun 01, 2015 8:50 pm

My 23i has become a bit sluggish

Post by Guitarman » Tue Feb 12, 2019 11:17 pm

Hi guys, I have had my 23i for coming up to 3 years. Always serviced by main dealer. Over the last few months I have noticed it doesn't seem as responsive as it used to be, and is a bit sluggish.
I had a new coil pack fitted after it started having an uneven idle. This has fixed the idle which is now perfect, but the car still doesn't feel like it did when I first bought it.
Any recommendations for a tune up?
2011 Z4 23i M Sport Highline
Deep Sea Blue - Canberra Beige - 326m 19" Alloys
Auto with paddle shift, idrive

User avatar
Player 1
Member
Member
Posts: 322
Joined: Sat Aug 09, 2014 9:34 pm
Location: Cornwall

My 23i has become a bit sluggish

Post by Player 1 » Wed Feb 13, 2019 7:50 am

Chuck the full set of coil packs and spark plugs at it. That'll improve throttle response no end and doesn't cost much.
Image

User avatar
Smartbear
Lifer
Lifer
Posts: 13685
Joined: Wed Feb 05, 2014 6:54 pm
Location: a barn in Somerset

My 23i has become a bit sluggish

Post by Smartbear » Wed Feb 13, 2019 7:55 am

Remove & clean the vanos solenoids :thumbsup:
Rob
Image

e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold

Guitarman
Newbie
Newbie
Posts: 29
Joined: Mon Jun 01, 2015 8:50 pm

My 23i has become a bit sluggish

Post by Guitarman » Wed Feb 13, 2019 9:45 am

Thanks guys!
2011 Z4 23i M Sport Highline
Deep Sea Blue - Canberra Beige - 326m 19" Alloys
Auto with paddle shift, idrive

User avatar
mr wilks
Legend
Legend
Posts: 21897
Joined: Wed Jul 04, 2012 10:02 pm
Location: Lancashire

My 23i has become a bit sluggish

Post by mr wilks » Wed Feb 13, 2019 10:51 am

Worth checking air filter condition too
3 ZMRs
3 E89s
5 Si coupes
5 Si roadsters
997 C4
TTRS
F82 M4
MK7 Golf Gti
current Bmw 6 Gran Turismo

Busterboo
Senior Member
Senior Member
Posts: 2811
Joined: Sun Nov 20, 2016 2:49 am

My 23i has become a bit sluggish

Post by Busterboo » Wed Feb 13, 2019 11:54 am

Guitarman wrote: Tue Feb 12, 2019 11:17 pm Hi guys, I have had my 23i for coming up to 3 years. Always serviced by main dealer. Over the last few months I have noticed it doesn't seem as responsive as it used to be, and is a bit sluggish.
I had a new coil pack fitted after it started having an uneven idle. This has fixed the idle which is now perfect, but the car still doesn't feel like it did when I first bought it.
Any recommendations for a tune up?
Take back to garage.
Vidi, vici, veni

User avatar
Pastry
Senior Member
Senior Member
Posts: 2288
Joined: Wed May 25, 2016 5:01 pm
Location: South East

My 23i has become a bit sluggish

Post by Pastry » Wed Feb 13, 2019 12:16 pm

Busterboo wrote: Wed Feb 13, 2019 11:54 amgarage.
Very useful :roll:
991 Carrera 2S
Now gone:
2008 Z4MR Midnight Blue Metallic
2006 Z4 3.0si sport Ruby Black
2006 Z4 3.0si sport Titanium Silver
2010 Z4 23i Msport and a 3.0i

Busterboo
Senior Member
Senior Member
Posts: 2811
Joined: Sun Nov 20, 2016 2:49 am

My 23i has become a bit sluggish

Post by Busterboo » Wed Feb 13, 2019 1:27 pm

Pastry wrote: Wed Feb 13, 2019 12:16 pm
Busterboo wrote: Wed Feb 13, 2019 11:54 amgarage.
Very useful :roll:
Well, so far the OP's been told to change his coils & plugs, clean his vanos solenoids and check his air filter. Taking his car back to the garage that always services it might just be the most efficient solution. So, take your sarcasm and can it.
Vidi, vici, veni

User avatar
Pastry
Senior Member
Senior Member
Posts: 2288
Joined: Wed May 25, 2016 5:01 pm
Location: South East

My 23i has become a bit sluggish

Post by Pastry » Wed Feb 13, 2019 2:39 pm

Busterboo wrote: Wed Feb 13, 2019 1:27 pm
Pastry wrote: Wed Feb 13, 2019 12:16 pm
Busterboo wrote: Wed Feb 13, 2019 11:54 amgarage.
Very useful :roll:
Well, so far the OP's been told to change his coils & plugs, clean his vanos solenoids and check his air filter. Taking his car back to the garage that always services it might just be the most efficient solution. So, take your sarcasm and can it.
:lol: I suspect the OP has already thought of that ...maybe you should stick to run flats and tyre pressure :roll:
991 Carrera 2S
Now gone:
2008 Z4MR Midnight Blue Metallic
2006 Z4 3.0si sport Ruby Black
2006 Z4 3.0si sport Titanium Silver
2010 Z4 23i Msport and a 3.0i

User avatar
Player 1
Member
Member
Posts: 322
Joined: Sat Aug 09, 2014 9:34 pm
Location: Cornwall

My 23i has become a bit sluggish

Post by Player 1 » Wed Feb 13, 2019 4:17 pm

Busterboo wrote: Wed Feb 13, 2019 11:54 am
Guitarman wrote: Tue Feb 12, 2019 11:17 pm Hi guys, I have had my 23i for coming up to 3 years. Always serviced by main dealer. Over the last few months I have noticed it doesn't seem as responsive as it used to be, and is a bit sluggish.
I had a new coil pack fitted after it started having an uneven idle. This has fixed the idle which is now perfect, but the car still doesn't feel like it did when I first bought it.
Any recommendations for a tune up?
Take back to garage.
I suspect the OP was going for suggestions on possible causes so he can return to the dealership with an informed opinion of what work might need carrying out.
Personally, I find it extremely useful when my customers can give me as much information regarding the fault's on their machines as possible as it allows me to pass that on to employees, eliminate certain problems and carry out a repair far more efficiently.

As the car is now eight years old and has recently had one coil pack fail, it'd suggest the others aren't in much better condition which would contribute largely to a slow throttle response, hence my post earlier.
Image

Busterboo
Senior Member
Senior Member
Posts: 2811
Joined: Sun Nov 20, 2016 2:49 am

My 23i has become a bit sluggish

Post by Busterboo » Wed Feb 13, 2019 11:31 pm

I understand. However, three well-meant suggestions - but all different and from a distance - don't make the "informed opinion" the garage that's serviced and worked on the car should be able to produce.
Vidi, vici, veni

flybobbie
Lifer
Lifer
Posts: 4045
Joined: Sat May 25, 2013 8:27 pm
Location: Stourbridge

My 23i has become a bit sluggish

Post by flybobbie » Thu Feb 14, 2019 9:01 am

I thought i was being clever, bought some after market ebay vanos solenoids, thought it might makes things a little better being new units. It actually made things worse. So i put the old one's back on and all normal.
I keep them in the boot, just in case.

My car just before 75k i replaced the coils and plugs and did make a slight difference.

Z4Sparky
Member
Member
Posts: 134
Joined: Fri Jun 10, 2011 6:41 pm

My 23i has become a bit sluggish

Post by Z4Sparky » Thu Feb 14, 2019 9:14 am

flybobbie wrote: Thu Feb 14, 2019 9:01 am I thought i was being clever, bought some after market ebay vanos solenoids, thought it might makes things a little better being new units. It actually made things worse. So i put the old one's back on and all normal.
I keep them in the boot, just in case.

My car just before 75k i replaced the coils and plugs and did make a slight difference.
How did it make things worse....I guess the least you would expect is it to be the same....

Do you think it was because they were "cheapies"?
2010 E89 sDrive 2.3i Alpine White

flybobbie
Lifer
Lifer
Posts: 4045
Joined: Sat May 25, 2013 8:27 pm
Location: Stourbridge

My 23i has become a bit sluggish

Post by flybobbie » Thu Feb 14, 2019 9:20 pm

Z4Sparky wrote: Thu Feb 14, 2019 9:14 am
flybobbie wrote: Thu Feb 14, 2019 9:01 am I thought i was being clever, bought some after market ebay vanos solenoids, thought it might makes things a little better being new units. It actually made things worse. So i put the old one's back on and all normal.
I keep them in the boot, just in case.

My car just before 75k i replaced the coils and plugs and did make a slight difference.
How did it make things worse....I guess the least you would expect is it to be the same....

Do you think it was because they were "cheapies"?
When fitted the engine just felt a bit flat, when the originals were put back on it all went back to normal.
If it ain't broke, don't try to improve it. Although much more success replacing coils and plugs.

Post Reply