Re: Temporary loss of Drive - DSG (R)
Posted: Fri Feb 22, 2013 5:43 pm
I used Mansfield vw when I had mine done. It might be worth filming the issues and getting in touch with vw UK, atleast then they've got a case raised against the car.
A discussion forum for everything about the MkIII Volkswagen Scirocco and Scirocco R
http://www.sciroccocentral.co.uk/forum/
1) Leaves a question of version number for a baseline to work from.nogara wrote:RW1
No access to VCDS
Coolant level ok
Mechatronics has been changed
It would help if you advised where you are based which you have not done thus far. You are hardly going to go to a dealer in devon if you're based in the north of Scotland even if they have the best reputation on earth.nogara wrote: If a recommendation is made by forum members re-a very competent dealer I will take it there and quote the overun to acceleration statement.
I do not hold up much hope as so far a recommendation has not been submitted.
All due respect Trix yes I wll travel.trix wrote:It would help if you advised where you are based which you have not done thus far. You are hardly going to go to a dealer in devon if you're based in the north of Scotland even if they have the best reputation on earth.nogara wrote: If a recommendation is made by forum members re-a very competent dealer I will take it there and quote the overun to acceleration statement.
I do not hold up much hope as so far a recommendation has not been submitted.
Snapey has made an offer.
Give us a clue!
Hello Etotheip.etotheip wrote:Fixed thanks to VW Nuneaton
HI everyone!RW1 wrote:1) Leaves a question of version number for a baseline to work from.nogara wrote:RW1
No access to VCDS
Coolant level ok
Mechatronics has been changed
I'm over in Shevington on Thursday 28th Feb. Could take a look with VCDS 10:00 - 13:00.
2) That eliminates the gearbox oil cooler leaking coolant into the gear oil and contaminating it which can lead to misbehaviours.
3) Didn't expect the valves as suspect but that definitely eliminates them.
Now, there are other influences which can lead to the occassional loss of drive. They are not the first line of culprits.
The DSG 6 Mechatronics measures shaft Input and Output Shaft(s) speeds (rpm) through sensors (senders). Output shaft rotation speeds are measured by G195 & G196 speed rotation senders. These hang on an extended arm on the Mechatronics Control unit. As these have been changed with the Mechatronics, they can be eliminated as they are integral to the Mechatronics part exchange that has been done.
That leaves the Input Shaft rotation speed sender G182. In order to change the Mechatronics, they have to take out and refit the G182 sender. That means its seated correctly and electrically connected onto the Mechatronics but the fault has persisted.
That leaves the sensor itself or the electrical wire connection to the connector fitted onto the Mechatronics. Normally a faulty G182 sender (part number: 02E 927 321A) should throw fault code 17100 - Implausible Signal, for speed measuring failure. But the DSG sender may not have the fault condition long enough to be recognised. Temporary loss of this signal would cause what is called "False Neutral". Which is what you are expreiencing. The lack of the fault code (as they have reported to you) means it can't be conclusively determined. But we don't know really what the DSG fault memory was like. (I have seen technicians clear down a fault memory and when re-testing, no fault returned immediately, so claim no fault found. Needless to say I changed that dealer's technician's approach to fault finding when it was demonstrated how it blinded them to performing diagnosis. Fault finding is a better these days due to the Guided Fault Finding on their VAS diagnostics, but its not perfect!)
To change the G182 sender means dropping out the gear oil (3.0 ltrs), taking off the Mechatronic cover, disconnecting G182, removing the G182 securing screw and remove the G182 sender. So not too hard a job for the dealer to do, much the same as when they changed the Mechantronics.
C.
