Valvetronic Gear Damage After Dealer Repair '08 Mini Cooper - MINI Cooper Forum
Go Back   MINI Cooper Forum > MINI Technical Forums > Maintenance & MINI Care


Maintenance & MINI Care
Find Sponsor products associated with this forum
Questions and advice on keeping your MINI in top shape, from engine oil to body wax

Mini2.com is the premier Mini Cooper Forum on the internet. Registered Users do not see the above ads.
Reply
Similar Threads
Thread Thread Starter Forum Replies Last Post
CVT Transmission Failure slaybalj First Generation CVT & Automatic 142 Oct 15th, 2014 10:48 AM
New 14 plate Mini Cooper SD Coupe Nightmare Kickboxkel Welcome New Members 6 May 21st, 2014 10:06 AM
Mini Cooper S Seat Heater Fire Paul.Armstrong First Generation Faults & Fixes 0 Apr 29th, 2014 02:08 PM
2014 MINI Cooper Hardtop Revealed AutoGuide.com MINI News 12 Feb 12th, 2014 02:12 PM
Mini Cooper S Diesel Convertible Gear Lever Linkage Disconnect mbennette Second Generation Faults & Fixes 0 Aug 20th, 2012 12:13 PM

 
LinkBack Thread Tools Rate Thread
  #1 (permalink)  
Old Jul 15th, 2014, 12:22 PM
MINI2 Newbie
Offline
 
Join Date: Jul 2014
Posts: 1
Local Time: 04:08 AM
United States
Valvetronic Gear Damage After Dealer Repair '08 Mini Cooper

I recently took my car to the local dealer after experiencing problems with the car sputtering and performing poorly at idle speed after driving long distances at high speed. Upon original visit, my car was diagnosed with a misfire in cylinder 3, which was found to be covered in oil, along with cylinder 1. They said the valve cover gasket had failed. Valve cover gasket was replaced, along with 2 coils and spark plugs. Here's where my limited knowledge of cars takes over, and need someone's opinion.

In the dealer report, it says that they cleared the faults and during valvetronic learning, the stopping pin broke. They fixed the stopping pin, and fault stored for a sluggish valvetronic motor. They replaced the motor and cleared faults. Car was operating as normal, and they called me for pickup.

After driving the car less than 100 miles, I started the car in the morning 2 days after picking up from the dealer. The engine ran fine, but when I shifted into gear and gave gas, nothing happened. The car would just roll forward and back at idle speed, with no affect when stepping on gas.

The car had to be towed to the dealership. This time, they diagnosed as the valvetronic gear having damaged teeth, causing the car not to run because it was unable to adjust gear correctly. After another week in the shop, and an additional $1500 in repairs, they called me to pick up the car.

I've now had the car for two days, and the initial sputtering at idle speeds after driving some distance is still there. I am frustrated beyond belief with this dealer.

Question for mechanical experts is this: Do you think that something that was done (or not done) in the initial repair caused the valvetronic gear to become damaged in the second issue? I would really like to know if I should have been responsible for the second $1500 bill for repairs, since it seems like it happened as a result of something that they did or did not do.

As for the continued sputtering issue, that's unresolved. They are supposed to take the car back to the dealership today (coming to pick it up from me, as I live more than an hour away). I certainly do not want to be presented with another bill like I've already had the last two times.

Any input would be appreciated. Thanks so much.
Reply With Quote
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old Aug 12th, 2014, 08:23 PM
MINI2 Regular
Offline
 
Join Date: Oct 2012
Location: Wirral
Posts: 63
Local Time: 09:08 AM
United Kingdom Male
I think....no regarding the valvetronic motor or pin. You haven't said much more about the lazy motor?

The valvetronic learning process is just teaching the shaft it drives, where its start and finish point of travel is. A car electric window works in a similar way when it has a one touch function, it needs to know where top and bottom are.

If the motor is lazy I would expect if nothing else has been done with it, that the fault code for it may be back. I think they have to re-teach the motor as it may have to come off to get the rocker or cam cover off. If they don't then I don't know why they had to go through that process. The motor has a worm gear that drives a geared quadrant, which extends the lift of the inlet valves under varying load. If the motor is still lazy it may contribute to your symptom.

They need to ask themselves is the motor lazy? or is it being restricted by another component? Is there a clue in the stopping pin breaking? Is there a bigger clue in the broken teeth on the eccentric shaft I think it is called (the quadrant is part of it).

There can be other consequential problems here, including cylinder head I believe, as the shaft rotates in irreplaceable bearings which are part of the head, just as the camshafts do.

Factors include poor oil change frequency or incorrect oil type, and on the later engines which seem to consume a lot of it, running the car on low oil level, can accelerate a build up of, or cause residue that tightens components, causing stress, or accelerate wear. Low oil level simply makes the remaining oil work very hard to do its job, and the oil change interval doesn't get reduced knowing the oil has been low usually, it just gets topped up mostly.

If the interval is 20k for 4.5 litres roughly, it's just too long, let alone when low.

The garage may have to be considerate with hours spent, as they may have missed something. However..... and sorry...... it's your car, so wear affected parts you may just have to bear, and hope that things you can't see deeper in the engine, can be preserved by several oil flushes, and future maintenance adjustments perhaps, halving the oil change interval if not more.

The original discovery of leaked oil on the plugs and coils may be a partial explanation, or even a coincidence, and not all of the problem. It's not necessarily the garages fault other than if they missed something when the cover was off, but they couldn't fairly be expected to ignore the oil contamination, and look for what else might cause your symptoms. That wouldn't be fair to you or their reputation.

Only my 2p here, I hope I interpreted your post correctly

Authorise further work cautiously, and keep records accurate of what you have been told is the reason for what. Ask for old parts if required and photos of the internals you may be able to have explained to you later perhaps?
Reply With Quote
Sponsored Links
Advertisement
 
Reply
Tags: , ,



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Rate This Thread
Rate This Thread:

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
CVT Transmission Failure slaybalj First Generation CVT & Automatic 142 Oct 15th, 2014 10:48 AM
New 14 plate Mini Cooper SD Coupe Nightmare Kickboxkel Welcome New Members 6 May 21st, 2014 10:06 AM
Mini Cooper S Seat Heater Fire Paul.Armstrong First Generation Faults & Fixes 0 Apr 29th, 2014 02:08 PM
2014 MINI Cooper Hardtop Revealed AutoGuide.com MINI News 12 Feb 12th, 2014 02:12 PM
Mini Cooper S Diesel Convertible Gear Lever Linkage Disconnect mbennette Second Generation Faults & Fixes 0 Aug 20th, 2012 12:13 PM

» Recent Threads
Automatic, won't shift out of park
Jun 30th, 2014 07:51 PM
Last post by Jazelmarie
Today 12:00 AM
2 Replies, 869 Views
2001 Bini Central Locking key fob pairing?
Yesterday 11:03 AM
Last post by mab01uk
Yesterday 10:44 PM
1 Replies, 169 Views
No spray on windshield wiper
Yesterday 08:54 PM
by mom7x
Last post by mab01uk
Yesterday 10:38 PM
1 Replies, 97 Views
Storage Compartment Pack
May 29th, 2008 03:51 PM
Last post by sirron
Yesterday 10:19 PM
6 Replies, 6,756 Views
Automatic transmission - settle a bet!
Oct 18th, 2014 06:05 PM
Last post by Sejanus
Yesterday 09:28 PM
6 Replies, 336 Views
Average life in miles for 2nd Gen mini clutch
Aug 12th, 2014 10:40 PM
Last post by mom7x
Yesterday 08:40 PM
3 Replies, 811 Views
2004 mini one aftermarket stereo
Yesterday 08:31 PM
Last post by Gee_Kimberley
Yesterday 08:31 PM
0 Replies, 98 Views
JCW intercooler intake grille.
Yesterday 08:06 PM
Last post by davidscott
Yesterday 08:06 PM
0 Replies, 99 Views
JCW/Sparco seats and rear facing baby seat?
Yesterday 07:16 AM
Last post by widetyres
Yesterday 07:26 PM
2 Replies, 263 Views
Water Ingress in the boot again
Jan 20th, 2008 10:02 AM
Last post by originalracingsnake
Yesterday 05:13 PM
2 Replies, 3,484 Views
Water in boot where tool kit is
Feb 5th, 2014 11:17 AM
Last post by originalracingsnake
Yesterday 05:10 PM
2 Replies, 933 Views
water in rear boot floor tool area
Mar 10th, 2013 10:50 AM
Last post by originalracingsnake
Yesterday 05:02 PM
8 Replies, 3,103 Views
My Mini Mods - thoughts and comments
Jul 18th, 2014 04:45 AM
Last post by jeshopping88
Yesterday 01:55 PM
1 Replies, 1,288 Views
2009 Cooper D Engine Problems (Turbo Lag)
Jul 11th, 2010 10:45 AM
by Bozzer
Last post by rolty
Yesterday 12:17 PM
83 Replies, 39,667 Views
DPF light but no fault codes
Yesterday 11:33 AM
by DJ-R56
Last post by DJ-R56
Yesterday 11:33 AM
0 Replies, 134 Views
R56 Mini One Engine Rattle
Yesterday 11:13 AM
Last post by In Reverse
Yesterday 11:13 AM
0 Replies, 172 Views
Two Spoke Steering Wheel swap
Oct 14th, 2014 12:13 PM
Last post by peteski2014
Yesterday 10:07 AM
5 Replies, 589 Views
Erratic engine speed when cold
Yesterday 09:56 AM
Last post by tyred bob
Yesterday 09:56 AM
0 Replies, 145 Views
Engine cranks but won't start
Sep 26th, 2014 01:49 PM
Last post by Cooperbob37
Yesterday 02:51 AM
1 Replies, 692 Views
Trying to figure out where the last connector goes???
Aug 27th, 2014 10:28 PM
by Eirhead
Last post by Cooperbob37
Yesterday 02:48 AM
1 Replies, 450 Views
» Premium
» Auto Insurance
Ľ Wheel & Tire Center

Powered by vBadvanced CMPS v3.2.1

All times are GMT. The time now is 08:08 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2