Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Arnott
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-26-2013, 03:35 PM
Member
 
Join Date: Jun 2012
Location: Gibraltar
Posts: 51
tcornelio is on a distinguished road
Loss of Power after service. Help!

Hi,

I have just come back after spending 9 hours at the mechanics!

I had my car booked in for a full service and to have the A/C gas re-filled.

When i got the car back it was a completely different car, it has 10% of the power it used to. I tried overtaking e.g. and not enough power. It also takes far longer to change gears.

So took the car back, they thought it was the air filter, they refitted it and told me it would be ok, tested again and it was the same.

Many hours later and they thought the new fuel filter they installed was faulty so they tried fitting my old filter back. It is a bit better than they left it before but still very slow and power loss can be felt substantially.

They say that it is definitely the fuel filter and are ordering a new one to install next week.

My question is if it is indeed the fuel filter then why has power not been restored to normal when they re-fitted my old one. I asked them and they said its because they need to bleed it properly to ensure there is no air left inside.

What do you guys think? How can a routine service basically ruin my car?

Please help.

Thanks.
Reply With Quote

Sponsored Links

  #2  
Old 04-26-2013, 04:04 PM
bcredliner's Avatar
.1 decrease 0-60 time = $1000 & DIY
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 6,967
bcredliner is on a distinguished road
I have no idea why they would think it is the air filter or the fuel filter if it ran fine when you brought it in. First suspicion is that they overfilled the AC and there is too much pressure so the AC pulley is dragging the engine down. That's if you have the air on. Does it idle different with the air on than with the air off?

Second shot at this is if you know how many miles it had on it when you brought it in and how many miles when you left with it in case they ran the Texas mile event--see how fast you can go? Did they test drive it before you picked it up and not notice?

What do you call a "full service"?
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
Reply With Quote
  #3  
Old 04-26-2013, 04:14 PM
bcredliner's Avatar
.1 decrease 0-60 time = $1000 & DIY
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 6,967
bcredliner is on a distinguished road
What is the year, mileage, engine on your X?

If the fuel filter has to be bled, I never do that, why didn't they bleed it. If you wanted a moped you would have bought one.

Is the air filter a stock air filter?
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
Reply With Quote
  #4  
Old 04-26-2013, 04:15 PM
bcredliner's Avatar
.1 decrease 0-60 time = $1000 & DIY
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 6,967
bcredliner is on a distinguished road
Showing any warning lights? Did they check if there were any fault codes?
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
Reply With Quote
  #5  
Old 04-26-2013, 04:16 PM
bcredliner's Avatar
.1 decrease 0-60 time = $1000 & DIY
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 6,967
bcredliner is on a distinguished road
If your invoice has detail of what they did can you scan and post it?
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
Reply With Quote
  #6  
Old 04-26-2013, 04:21 PM
X5Sport's Avatar
Member
 
Join Date: Mar 2005
Location: Eastern flatlands of the UK.
Posts: 529
X5Sport is on a distinguished road
If it's a diesel check all of the vacuum connections on the left side of the engine. It's a common fault that at least one of the hoses is left disconnected and the turbo will not spool up properly as the vacuum reservoir (small black tank on left suspension turret) is unplugged. No vacuum = reduced boost = power reduction.

The reservoir is just visible in the bottom left of this picture (black caged structure) and should be connected all the way through. Changing air filters often disturbs the vacuum lines.


UK Diesel owners have had this on so many occasions!! Of course if it's not a diesel then pass......
__________________
Me:
Current: 2011 E71 40D Vermilion Red/Beige Nappa


Wifey:
Current: 2012 R80 Countryman SDX Green/Cream

Last edited by X5Sport; 04-26-2013 at 04:30 PM.
Reply With Quote
  #7  
Old 04-26-2013, 05:03 PM
Member
 
Join Date: Jun 2012
Location: Gibraltar
Posts: 51
tcornelio is on a distinguished road
Ok...read your replies.

With regards to the A/C pressure i have tried with and without the A/C on and it makes no difference.

The car has power but not the same as before, it is also taking longer to change gears (its automatic).

I also cannot hear the turbos as before..It is indeed a diesel. I will check the reservoir is connected properly as suggested.

It is indeed a diesel so this could be it. I will check and report back asap.

Thanks for your help so far.
Reply With Quote
  #8  
Old 04-26-2013, 05:03 PM
Member
 
Join Date: Jun 2012
Location: Gibraltar
Posts: 51
tcornelio is on a distinguished road
Its a 2006 model 3.0 Diesel.
Reply With Quote
  #9  
Old 04-26-2013, 05:33 PM
bcredliner's Avatar
.1 decrease 0-60 time = $1000 & DIY
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 6,967
bcredliner is on a distinguished road
Oopsie, When you get a chance would be good if you could add year, model and mileage as a signature. I was thinking gas. Vacuum hose problem sounds like good odds, that would be easy fix. Hope you're lucky!
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
Reply With Quote
  #10  
Old 04-26-2013, 05:59 PM
Member
 
Join Date: Jun 2012
Location: Gibraltar
Posts: 51
tcornelio is on a distinguished road
Yes i hope its a quick fix too! Car was fine before the service.

They also confirmed no error codes.

Can you guide me through how to check if the vacuum/gas hoses are connected properly?
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 09:13 PM.
vBulletin, Copyright 2019, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.