DSG gear indicator flashing alternately with a spanner symbol

[HamishP]

Hello folks,

 

Something odd happened last night with my 2011 Octavia VRs DSG.

Engine was warm, started no problem, put into Drive, pulled away and got stopped at lights, felt a very slight jolt and a spanner symbol started flashing alternate with the D symbol.

Seemed stuck in 1st gear, paddles wouldn't work, changing to manual didn't help.

Pulled over, no info on the MFD re car status.

Switched off, waited 5 mins and restarted - all cleared, drove perfectly!!

Any ideas?

 

Thanks guys

Hamish

[Gissin]

could be a list of things, have you scanned for any faults?

when was it(DSG) last serviced ?

when did you last change your battery? low or duff batteries can throw some weird electrical issues.

hydraulic pump body inside the mechatronic unit is losing fluid pressure??

could be a software fix 

could never happen again and was just an error with that gear at that time 

[HamishP]

Hi mate,

 

Not scanned for errors yet but not fault showing on the dash at the time.

DSG serviced 2 years ago.

New battery / alternator this year.

I’m hoping it’s your last point! All seems to be good today, like nothing happened.

[Ootohere]

@HamishP

Serviced 2 years ago does not tell us much as the Scheduled DSG oil changes are at 40,000 miles, so how many miles was the service @ 2 years ago and how many miles on the car now?

[HamishP]

DSG serviced 29/08/17 at 76,444 miles.

No evidence of DSG servicing before this.

Millage now is 105,780

Got the car scanned today:-

    Trouble codes:
        P2711 - Unexpected Mechanical Gear Disengagement Upper limit exceeded
            Intermittent
                Priority:  0
                Frequency counter: 255
                Driving cycle: 39
                Mileage: 170238 km

 

[Gissin]

Possible Causes

Double Clutch worn/faulty

Worn/Damaged gear shaft(s)

Output Shaft Speed Sensor 1/2 (G501/G502) faulty

Mechatronic Unit for Double Clutch Transmission (J743) faulty

 

TSB for P2711 fault that states it is due to debris in the wet clutch packs and the fix is to replace the wet clutch packs

https://static.nhtsa.gov/odi/tsbs/2013/MC-10121327-9999.pdf

[HamishP]

Thanks for this, appreciated.

all sounds a bit serious, if the fault happens again and again I’ll probably sell...

[TheClient]

3 hours ago, Gissin said:

Possible Causes

Double Clutch worn/faulty

Worn/Damaged gear shaft(s)

Output Shaft Speed Sensor 1/2 (G501/G502) faulty

Mechatronic Unit for Double Clutch Transmission (J743) faulty

 

TSB for P2711 fault that states it is due to debris in the wet clutch packs and the fix is to replace the wet clutch packs

https://static.nhtsa.gov/odi/tsbs/2013/MC-10121327-9999.pdf

 

If there is a tsb for debris in clutch pack it may be worth an dsg oil and filter change. There is certainly not a guarantee, and it won't fix the other possible culprits but debris is the reason for the 6Sp wet clutch oil changes. 

 

You have done 30k miles and the interval is 40k miles. If you are hard on the clutch packs (or previous owners were) they could be a prime suspect.

 

There have been members who have found service agents haven't done the filter changes when they were supposed to and even charged. Some disassembly around the battery is required. And eventually the filter can tear or fail in other ways.  

[HamishP]

Folks, 

 

Just an update re the DSG issue - glad to say there has been no recurrence of the issue (so far), the car is running great!