Change in MPG- Possible eco mode error

Mc1994 · Post by **Mc1994** » Thu Dec 21, 2023 7:59 pm

2021 Skoda Karoq SportLine 2.0 TDI DSG 4X4 - I’ve noticed a massive change in my MPG. For a weeks I’d been getting 40+. Now only getting 24..

I do the same route and in eco mode all times.

Does anyone know what the issue may be?

CJJE · Post by **CJJE** » Fri Dec 22, 2023 12:17 pm

I'd wonder about a sudden drop in external temperatures, but it's been pretty mild in the midlands recently. Is that true for you too? I know my petrol Karoq takes longer to warm up in the winter with a corresponding drop in fuel consumption - but not to the extent your diesel has.

Chris

IanW · Post by **IanW** » Fri Dec 22, 2023 12:54 pm

Check the air filter and ducts for blockages. A diesel will over fuel if air supply is restricted. Failing that , any sign or smell of a fuel leak ?

sanqhar · Post by **sanqhar** » Fri Dec 22, 2023 1:29 pm

Winter diesel is less efficient because of the anti gelling additives and the engine will take longer to warm up in colder temperatures. Stronger winds at this time of year can also make a difference.

tom

Mc1994 · Post by **Mc1994** » Fri Dec 22, 2023 1:34 pm

My cars a petrol.. I did think maybe filters are blocked but not entirely sure

Mc1994 · Post by **Mc1994** » Fri Dec 22, 2023 5:53 pm

Believe it’s the DPF/PPF filter, when it blocks it uses more fuel. Been told it just needs a good run out.. has anyone else experienced this?

IanW · Post by **IanW** » Sat Dec 23, 2023 11:14 am

My cars a petrol.. I did think maybe filters are blocked but not entirely sure

but in your first post you said

2021 Skoda Karoq SportLine 2.0 TDI DSG 4X4

which is a diesel...

BTandSid · Post by **BTandSid** » Sun Dec 24, 2023 12:30 pm

Not sure what model OP has? As @IanW has mentioned a TDI would be a diesel yet OP a maintains he’s driving petrol. Perhaps that’s the problem, misfuelled and car slowly coming to a stop

Bramleyapple · Post by **Bramleyapple** » Thu Dec 28, 2023 2:10 pm

I have a 21MY Karoq 4x4 SEL 2.0 D and get very good fuel consumption. I did a round trip of 155 miles last week on motorways and country roads and got 47.2 mpg. in normal setting.
Eco setting is not always the most economical I have found.
What milage has the car got on the clock? Is it due a service? Does it start ok?

Mc1994 · Post by **Mc1994** » Sat Dec 30, 2023 11:11 pm

The model is: Karoq Sportline Tsi 4X4 S-A 2.0 Tsi 190 4X4 DSG

Still getting poor MPG, 20-25 MPG. Since it should be doing at least 30-35

There’s just over 20k miles on the clock.

It is due a oil change in 2 weeks time..

Change in MPG- Possible eco mode error

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