Hey Superb'ers,

I have the Superb DSG 140 SE from new and last week I started to smell a slight burning rubber smell that went away after about 10 mins.

A day later when turning off the engine I noticed that the fans were still running so I waited to see how long before they turned off. I appreciate cooling fans can over run but I have only ever experienced them doing so in the very hot summer months, never in minus degree weather in January!

Anyway after about 10 mins these were still whirring around so I became concerned there was a problem. After starting the engine again them turning it off after a few seconds, the cooling fans turned off as usual this time, no over running at all.

I put the first one down to an anomaly but Its happened a second time today, turned car off, fans overrun, turn engine on and off again and the fans stop as they should.Its a brand new car with only 1800 miles on the clock

Anyone else had this happen?

Any idea what it could be?

Is this normal for Superb to do this?

Thanks guys

Steve

Sounds odd to me at this time of year, unless you were driving it very hard. I'd take it back to the dealer and let them take a look.

Don't. Panic, sounds like dpf regeneration. My car has done same several times

Hi Steve

Shouldn't happen in this Country unless towing in very hot weather.

I had this on an Octavia 1.8 a few years ago and it was a faulty temperature sensor - fixed by the Dealer while I waited.

Just book it in and let the Dealer worry about it - not you.

Cheers

Graham

Don't. Panic, sounds like dpf regeneration. My car has done same several times

This is exactly what it is.

Dpf.

Happens more at cold temperature.

Don't panic. It's normal.

i have never heard mine doing this.is that good or bad .

in for second service tomorrow 21000 miles in 31 months at this rate the car should last longer than me.

what should you get in the second service gismo

bill

i have never heard mine doing this.is that good or bad .

in for second service tomorrow 21000 miles in 31 months at this rate the car should last longer than me.

what should you get in the second service gismo

bill

That’s good, it means the car is doing it’s thing and your driving is fine.

I have only ‘noticed’ mine do it when you see the fuel consumption increase… drastically.

Mine is on variable servicing, 1st service was just under 18K miles IIRC that was basically on oil and oil filter change (I changed the air filter afterwards myself) and a ‘visual health check’ = a quick look over the car.

Sounds like the DPF. I had exactly the same a couple of weeks ago on my 170 vRS. You'll probably notice tickover goes up a bit too while it's doing it's thing. (I had no warning lights on and only noticed the fans going when I got out of the car- had the old music turned up a tad!) I also smelled the 'hot smell' on the next journey so it must have completed what it couldn't because I'd switched the engine off before it had finished last time. I popped into the dealer and the service manager said it was doing a partial regen and it was nothing to worry about. He also said if the light comes on if possible carry on driving until it goes out. Skoda have different guidance for the CR engines on their website- no more constant 1800-2500 rpm in 3rd to 5th like PD engines. He did recommend not to keep switching the engine off before it completes the cycle if you get the light on though as you could end up blocking the DPF and having to take it in for a forced regen.

http://www.skoda.co.uk/GBR/Documents/19246_Skoda_DPF_Leaflet_v7.pdf

cheers

Ade

thats good news then.

i will let you know what they do.the good news is i have a free 2nd service from skoda uk for all the messing about i had with the new alloy wheels.

bill

i have never heard mine doing this.is that good or bad .

in for second service tomorrow 21000 miles in 31 months at this rate the car should last longer than me.

what should you get in the second service gismo

bill

I've only noticed the fan overrun (DPF regen. interrupted) about five times in 80,000 miles, that suggests the odds of catching it 'in the act' are quite high.

Obviously this means the regen is taking place when the car is being driven, this can be accompanied by:

A slight booming noise from the exhaust at around 2500 rpm

Lumpy part throttle response

Higher fuel consumption

Higher oil temperature

Idle of about 950rpm

At the moment, my DPF is regenerating on average every 300-350 miles or so.

Who'd buy a diesel, eh? !!!!!!!

I've only noticed the fan overrun (DPF regen. interrupted) about five times in 80,000 miles, that suggests the odds of catching it 'in the act' are quite high.

Obviously this means the regen is taking place when the car is being driven, this can be accompanied by:

A slight booming noise from the exhaust at around 2500 rpm

Lumpy part throttle response

Higher fuel consumption

Higher oil temperature

Idle of about 950rpm

At the moment, my DPF is regenerating on average every 300-350 miles or so.

What sort of driving do you do, and what fuel ? that seems an excessive amount of regens.

What sort of driving do you do, and what fuel ? that seems an excessive amount of regens.

Usually BP fuel, I've never put supermarket fuel in it. 70% motorway, 30% London traffic. Car is always fully loaded with tools and equipment, often driven in a 'sprightly' fashion.

The DPF interval has dropped in the winter months. In the warmer months I am sure it is more like every 450-500 miles. The interval is something I am keeping an eye on (I reset mileage counter 2 when regen is complete) in case it is a symptom of something more serious (EGR or ASV problem = more soot perhaps?).

There aren't any faults being logged when I routinely scan with VCDS and the car is well serviced with new fuel and intake filters fitted recently.

VCDS should show you the number of times your vehicle has regenerated, never had the tickover or hot smell and fans running any regens were as normal and no obvious increase in fuel used, with my first Superb CR 170 even though it was DSG, so far in two years with my manual CR170 the same, but changing to manual has improved fuel economy no end.

as you I have apart from about 3 occassions only used BP Ultimate. I used BP Ultimate in my Superb MkI 1.9 for 6 years and as in my two CR 170's inside the xhaust tailpipes were as clean and shiny as the day they were bought.

The cars were used 60% in rural Cornwall so not at all ideal conditions with summer traffic and extremely bad roads ( possibly the worst in the country ) the rest Motorway and mainly A roads throughout the country.

I no longer have access to VCDS, so will get my local dealer to check the regen total at next service.

car came back from its 2nd service 21.000 at beadles maidstone.

they did not change the fuel filter or the air filter not part of the service at this milage they said.i thought this was strange but did change the pollen filter and they forgot to stamp the service book.mmmmmmmmmmm

bill

The air (and fuel IIRC) filter are meant to last 60K, madness if you ask me, as I say the air filter I did myself and it was pretty grubby hence why I do them myself at every (variable) service.

as you say madness i will replace them myself.

bill

My 2013 superb dsg hatch with 6000m has had the fan overrun twice in just over a week.  The first was after a 30 mile up to 50 mph run and continued for about 10 - 15 mins.  I reported to dealer engineer and he said it was a dpf regen, but to let them know if it happened again.  8 days later after a short 2 mile run it recurred.  A different engineer asked if I had the aircon on.  I always do.  He said that the fans will overrun even after a short journey if sensors decide that the aircon rad needs to be decondensed to avoid corrosion.  That's a new angle to consider.

Anyone got an update on this issue considering it is 18 months ago and I expect a few more people with longer experience of the CR engine.

 

I have a 140 DSG 4x4 and now done 100K in 4 years.  I had previously never noticed the over running fan.  First time it did not stop for minutes and I eventually turned car on and off and it stopped. This was a month ago and I mentioned it at my service.  At the same time the oil and water temp started to run cold whilst doing calm motorway driving.   The dealers Beadles Maidstone weren't sure of the problem and replaced the temp sensor saying that was the cheapest thing it could be   £120.   Since the service had repeat of the cold running down to 55oC and then this morning fan overrun and a clear burning smell.   Always loathed to take into a garage when they already said don't know and I replace another thing unnecessarily . Surely someone knows?  Thanks

Weird! Mine did exactly this on Friday PM after driving 6 miles in stop/start local traffic. When I parked up, I noticed the fan was running-on, and this continued whilst I paid for parking online. As I was in a rush, I couldn't continue to time it there however, at the end of the return journey home (through even worse traffic, that is the joke called Wandsworth town centre!) the fan ran on again and I timed it at seven minutes - that seems an age when you're waiting for something to stop! Went out a couple of times again locally over the weekend and it didn't run-on again. I'll report back when it does.

Anyone got an update on this issue considering it is 18 months ago and I expect a few more people with longer experience of the CR engine.

 

I have a 140 DSG 4x4 and now done 100K in 4 years.  I had previously never noticed the over running fan.  First time it did not stop for minutes and I eventually turned car on and off and it stopped. This was a month ago and I mentioned it at my service.  At the same time the oil and water temp started to run cold whilst doing calm motorway driving.   The dealers Beadles Maidstone weren't sure of the problem and replaced the temp sensor saying that was the cheapest thing it could be   £120.   Since the service had repeat of the cold running down to 55oC and then this morning fan overrun and a clear burning smell.   Always loathed to take into a garage when they already said don't know and I replace another thing unnecessarily . Surely someone knows?  Thanks

I would be pretty confident this is the DPF as already mentioned in earlier posts.  Basically the car tries to carry out a regeneration to burn off all the soot etc that accumulates and this will happen periodically after x amount of miles .  Normally this process happens as a passive regeneration without you realising it, especially if you are driving at motorway speeds or on a long journey.  However, when the temperature within the DPF isn't quite hot enough for this passive process to happen, an 'active regeneration' takes place.  This is where a small amount of diesel is pushed into the DPF to help burn off the soot.  If you switch off the engine before this active regeneration finishes, the fan will stay on in order to cool the engine.  This is normal and you will probably also notice a strong smell of burning even in the cabin - again quite normal.  I've had mine checked out as well as I was concerned (although I was pretty sure it was the regen) when this happened first but everything was fine.

 

The fact that it happens after short journeys would lead me to believe that an active regen is taking place.  I explained this to a mechanic before who looked at me as if it was all new to him - scary!!

Thank you but can I give my scenario

 

1) Journey is 1 hour average speed 55mph on busy motorway M25 commute

2) although I did not notice today the other day water gauge down to nearly the lowest 50oc and MFD showed oil temp at 65oc

 

perhaps the overrun and the low temperature are not connected but also in 4 years of ownership had not notice the overrun before and driving style or circumstances not changed at all.

 

Lastly have noticed increase in  fuel consumption

 

appreciate any other thoughts or back to Beadles
 

Happened to me last week for first time. Well first time that I noticed. Fan stayed on after car switched off for about 2 minutes.

I could smell heat from under bonnet and around exhaust. Also noticed that engine shut off not working and revs about 100 more than normal.

Also economy on this trip would normally show as 4.7L/100kms, but this time was 5.2.

 

This trip was about 70 kms, so regen must have started near end of journey. Next trip everything was back to normal.

Thank you but can I give my scenario

 

1) Journey is 1 hour average speed 55mph on busy motorway M25 commute

2) although I did not notice today the other day water gauge down to nearly the lowest 50oc and MFD showed oil temp at 65oc

 

perhaps the overrun and the low temperature are not connected but also in 4 years of ownership had not notice the overrun before and driving style or circumstances not changed at all.

 

Lastly have noticed increase in  fuel consumption

 

appreciate any other thoughts or back to Beadles

 

 

How often is this now happening?