F20 120D M-sport

F20 120D Msport · Nov 23, 2025

Hi everyone, trust you are well. I wanted to find out what you gents/ladies get on fuel consumption? Currently im getting 8-9L/100Km on my F20 120D mix driving mostly town/traffic, is this normal ? When i drive hard its pretty thirsty although its tuned so thats understandable.

Thanks in advance

AshG108 · Nov 24, 2025

You should be getting around 7-8 atleast with a slightly harder foot on that car, but if it is tuned...dependent on the file it has and what it was mapped for as well.
Some okes go high fueling to get power and the car becomes thirsty, how is the smoke from the exhaust when you drive it? Can you notice smoke or is it light or none?
Also check when last it had its air filter, fuel filter,engine oil flush and oil service. And if it has a DP, also check if there is no leaks anywhere on the joints or the DP itself.

F20 120D Msport · Nov 24, 2025

AshG108 said:
You should be getting around 7-8 atleast with a slightly harder foot on that car, but if it is tuned...dependent on the file it has and what it was mapped for as well.
Some okes go high fueling to get power and the car becomes thirsty, how is the smoke from the exhaust when you drive it? Can you notice smoke or is it light or none?
Also check when last it had its air filter, fuel filter,engine oil flush and oil service. And if it has a DP, also check if there is no leaks anywhere on the joints or the DP itself.

So it has a stage2 file and DP, egr delete in software but im going to blank it of soon, according to my knowledge they have added abit of fuel so it smokes a little bit but it doesn’t look like a tuned 1.9TDI . All maintenance is up to standard all filters and serviced has been done. I want to take it for pressure test to see if the boost pipes are maybe leaking or even on the DP as you said. I was wondering if the injectors could maybe give problems?

AshG108 · Nov 24, 2025

F20 120D Msport said:
So it has a stage2 file and DP, egr delete in software but im going to blank it of soon, according to my knowledge they have added abit of fuel so it smokes a little bit but it doesn’t look like a tuned 1.9TDI . All maintenance is up to standard all filters and serviced has been done. I want to take it for pressure test to see if the boost pipes are maybe leaking or even on the DP as you said. I was wondering if the injectors could maybe give problems?

I have not experienced many 20d/30d with injectors issues but nothing wrong with checking it out, especially if it is a second hand car and dont know the previous history of it but if you do. I think it will be peace of mind more so... ask for the smoke test as well. Also, buy a bottle of diesel injector cleaner and put it into every 3rd tank... your car tank will only need half the bottle per tank and let it clean itself out.
No hard driving or anything required. I used to experience kak consumption also when I had crap diesel that was filled in the car...

F20 120D Msport · Nov 25, 2025

AshG108 said:
I have not experienced many 20d/30d with injectors issues but nothing wrong with checking it out, especially if it is a second hand car and dont know the previous history of it but if you do. I think it will be peace of mind more so... ask for the smoke test as well. Also, buy a bottle of diesel injector cleaner and put it into every 3rd tank... your car tank will only need half the bottle per tank and let it clean itself out.
No hard driving or anything required. I used to experience kak consumption also when I had crap diesel that was filled in the car...

Thanks bud i will buy the diesel injector cleaner and put it in the next tank(half bottle)

Where can i do a smoke test?

F20 120D Msport · Nov 25, 2025

AshG108 said:
I have not experienced many 20d/30d with injectors issues but nothing wrong with checking it out, especially if it is a second hand car and dont know the previous history of it but if you do. I think it will be peace of mind more so... ask for the smoke test as well. Also, buy a bottle of diesel injector cleaner and put it into every 3rd tank... your car tank will only need half the bottle per tank and let it clean itself out.
No hard driving or anything required. I used to experience kak consumption also when I had crap diesel that was filled in the car...

Also another thing , where do you fill up ? I prefer BP , as far as i know BP and shell has the best quality fuel

FILV · Nov 25, 2025

I think your consumption depends on your daily drive. Say if your trip consists of a small distance that's mainly root to robot then id say that's normal.

Give Sasol 10ppm a try and see if it makes a difference.
Also make sure your car is indeed serviced. Check the air filter is clean (easy to check yourself)

F20 120D Msport · Nov 25, 2025

FILV said:
I think your consumption depends on your daily drive. Say if your trip consists of a small distance that's mainly root to robot then id say that's normal.

Give Sasol 10ppm a try and see if it makes a difference.
Also make sure your car is indeed serviced. Check the air filter is clean (easy to check yourself)

I will try sasol thanks💪🏼
All filters and services has been done

AshG108 · Nov 25, 2025

F20 120D Msport said:
Thanks bud i will buy the diesel injector cleaner and put it in the next tank(half bottle)

Where can i do a smoke test?

I did mine with Xcede and Alister at XFlow whenever I suspected anything.

Scotty88 · Nov 26, 2025

Something not right there. At most I get 6.4 per 100km in traffic.

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F20 120D Msport · Nov 26, 2025

My point exactly my friends 320D got 7-8L/100Km when driving hard whilst being tuned

Xcede Performance · Nov 26, 2025

Your consumption is way too high. You should be hovering around 6-6.5 L/100KM.

Was the car always this heavy on fuel or did it only start after your Ecu tune?

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F20 120D Msport · Nov 26, 2025

Xcede Performance said:
Your consumption is way too high. You should be hovering around 6-6.5 L/100KM.

Was the car always this heavy on fuel or did it only start after your Ecu tune?

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Before i got like 7-8 in town/ traffic depending on how i drive

Xcede Performance · Nov 26, 2025

F20 120D Msport said:
Before i got like 7-8 in town/ traffic depending on how i drive

These cars are supposed to get more economical on fuel if the remap is done right

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F20 120D Msport · Nov 26, 2025

Xcede Performance said:
These cars are supposed to get more economical on fuel if the remap is done right

Sent from my iPhone

Even if it is a stage 2 file ? I will speak to the tuner and ask 🙏
Can there possibly be something wrong like a boost leak or something causing it to be heavy

Xcede Performance · Nov 26, 2025

Yes even stage 2 regardless

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F20 120D Msport · Nov 26, 2025

Scotty88 said:
Something not right there. At most I get 6.4 per 100km in traffic.

Sent from my SM-S928B using Tapatalk

Where are you tuned?

AshG108 · Nov 26, 2025

F20 120D Msport said:
Even if it is a stage 2 file ? I will speak to the tuner and ask 🙏
Can there possibly be something wrong like a boost leak or something causing it to be heavy

What tune is on the car? Who did it for you?
All my cars, and the current X3 and Polo both experienced better consumption once tuned so something is not right here.

F20 120D Msport · Nov 26, 2025

Stage 2 file done by Saftrade

Sabretooth tiger · Nov 26, 2025

F20 120D Msport said:
Stage 2 file done by Saftrade

They in Boksburg if I recall, so its a "boet " tune then. It must be heavier

J/K If it was me I would get the tune checked as well as if there are any boost leaks

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