The DSG gearbox malfunction warning light appears on our 2012 Citigo on first ignition and gears will not select.  Turning ignition off an on again corrects this and car then drives normally.  Our independent garage has reset the codes and checked for leaks but problem still occurs.  They suggest a DSG oil change MAY fix the problem, else it needs to be seen by a specialist.  Is it likely that an oil change will resolve issue?  The DSG oil has never been changed.  Mileage is 65,000.

Edited 13 December, 20205 yr by RedSkoda2

@RedSkoda2

There are similar threads in the Citigo section worth reading.  Sadly the issue is one that Skoda / VW Dealers are not dealing with very well.

 

It is not a DSG in the Citigo.  ie Twin Dry Clutch 7 speed.   It is an ASG.

14 hours ago, e-Roottoot said:

@RedSkoda2

There are similar threads in the Citigo section worth reading.  Sadly the issue is one that Skoda / VW Dealers are not dealing with very well.

 

It is not a DSG in the Citigo.  ie Twin Dry Clutch 7 speed.   It is an ASG.

Thanks.  Can't amend post though.  Query remains as cannot see a post relating to warning light.

Edited 14 December, 20205 yr by RedSkoda2

I know very little about this exact ASG, but I'm betting oil quantity/quality is not the issue, but I'd be very pleased to be wrong!

 

These units are not rocket science - far simpler than a full DSG or a modern version of a slush-box automatic.

 

I reckon it's going to come down to one or more of: electronic control unit/sensors/solenoid actuators/bad wiring or contacts. The problem clearly is finding which it is....  I am surprised that the ECU error codes are not more helpful for the dealer.

2 minutes ago, freemansteve said:

I know very little about this exact ASG, but I'm betting oil quantity/quality is not the issue, but I'd be very pleased to be wrong!

 

These units are not rocket science - far simpler than a full DSG or a modern version of a slush-box automatic.

 

I reckon it's going to come down to one or more of: electronic control unit/sensors/solenoid actuators/bad wiring or contacts. The problem clearly is finding which it is....  I am surprised that the ECU error codes are not more helpful for the dealer.

Thanks for that.  I'll ask the garage what the fault codes were (I know they noted them for future reference) and check with a specialist.

So, the error codes that showed up were as follows.  If anyone can through any light on what these mean in practical terms or, more especially, what they might mean in cost terms, I'd be delighted to hear.

 

P060B00 - Internal control module processing performance

P091000 - Gate select actuator circuit open

P092000 - Gear shift forward actuator circuit

No idea, but I bet the "actuator" is just a solenoid that physically moves parts in the gearbox to select gears for you. There will probably be two or three solenoids and they probably have a means of signalling their position (open/closed) to the control unit. It could be that one is sticking or has failed (or  a wire has come off or a bad contact).

 

It reminds me of the electrically-controlled 4WD and Low-range selector mechanism on my Nissan pick-up truck - these solenoids would start to fail on high mileage trucks or ones that did a lot of off-roading as water got in, and would then need to be replaced because 4WD stopped engaging properly. They basically just shoved lock-pins and sliding gears around inside the transfer case. Not a million miles from what goes on in an ASG, I would think.

 

Thing is, the parts are probably not expensive, but it all depends on what you need to do to change them.

I could be completely wrong here, but there are not many other theories being put forward!

1 hour ago, freemansteve said:

No idea, but I bet the "actuator" is just a solenoid that physically moves parts in the gearbox to select gears for you. There will probably be two or three solenoids and they probably have a means of signalling their position (open/closed) to the control unit. It could be that one is sticking or has failed (or  a wire has come off or a bad contact).

 

It reminds me of the electrically-controlled 4WD and Low-range selector mechanism on my Nissan pick-up truck - these solenoids would start to fail on high mileage trucks or ones that did a lot of off-roading as water got in, and would then need to be replaced because 4WD stopped engaging properly. They basically just shoved lock-pins and sliding gears around inside the transfer case. Not a million miles from what goes on in an ASG, I would think.

 

Thing is, the parts are probably not expensive, but it all depends on what you need to do to change them.

I could be completely wrong here, but there are not many other theories being put forward!

My thinking also.  The pertinent bit is 'depends on what you need to do to change them'.  Reminds me of my first car - a Renault 5TS - my local garage had to purchase a special tool to remove one of the spark plugs that was totally inaccessible.  I went halves with them on the cost of that tool - doubling the cost of the service!!

On my Renault 21 Savannah auto my mate who is a top automatic gearbox specialist still had to have the actuators tested at the Renault dealership, that was about 25 years back.

On my Ford Transit Durashift which should never have been sold to the public as Ford changed the actuators but my one slipped through the net.

it was days of fault finding before finally being able to get a actuator and disc sent from Germany for a couple of grand. Even then the replacement went wrong.

My local Skoda main dealer is asking £90 to run diagnostics and then a minimum of 4 hours at £105 /hr for any work.  All plus VAT. Some serious thinking to be done.

Fixed Price Servicing and Maintenance at participating dealers on 3-10 year old cars is £60 for the first 30 minutes.   The Master Tech might just discover the fault so diagnose in under 30 minutes.

 

No idea why the work would be estimated at 4 hours min.  (Half a day works out nice for a customer that lays Golden Eggs.)

Maybe just a forewarning that they are going to screw you over and really they do not want your custom.

Best talk with a Automatic (Automated Manual) gearbox specialist.

That up to now with those having ASG issues does not seem to be Main Dealers techs.

Edited 16 December, 20205 yr by e-Roottoot

A very belated update... My Skoda Dealer, having run diagnostics, determined that a new battery was required.  Once fitted, the gearbox warning lights went out and have not returned.