Liqui Moly Pro-Line Diesel System Cleaner 500ml
Highly concentrated, ready to use cleaning fluid. Removes deposits in the injection pump, on injection nozzles and in the combustion chamber and keeps them from forming again. Prevents jet needles from fusing and gumming. Improves engine running and optimizes the exhaust gas values. Eliminates starting problems, rough engine running, poor throttle response and power loss. Maintains and protects the entire fuel system from wear and corrosion. Clean engines need less fuel and reduce emissions.
Highly concentrated, ready to use cleaning fluid. Removes deposits in the injection pump, on injection nozzles and in the combustion chamber and keeps them from forming again. Prevents jet needles from fusing and gumming. Improves engine running and optimizes the exhaust gas values. Eliminates starting problems, rough engine running, poor throttle response and power loss. Maintains and protects the entire fuel system from wear and corrosion. Clean engines need less fuel and reduce emissions.
Highly concentrated, ready to use cleaning fluid. Removes deposits in the injection pump, on injection nozzles and in the combustion chamber and keeps them from forming again. Prevents jet needles from fusing and gumming. Improves engine running and optimizes the exhaust gas values. Eliminates starting problems, rough engine running, poor throttle response and power loss. Maintains and protects the entire fuel system from wear and corrosion. Clean engines need less fuel and reduce emissions.
Highly concentrated, ready to use cleaning fluid. Removes deposits in the injection pump, on injection nozzles and in the combustion chamber and keeps them from forming again. Prevents jet needles from fusing and gumming. Improves engine running and optimizes the exhaust gas values. Eliminates starting problems, rough engine running, poor throttle response and power loss. Maintains and protects the entire fuel system from wear and corrosion. Clean engines need less fuel and reduce emissions.
in 5 offers
The lowest price for Liqui Moly Pro-Line Diesel System Cleaner 500ml right now is $22.89 at ECS Tuning, compared across 4 retailers.
The all-time low was $16.84 on 14 Apr 2026 — today's price is 36% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 8 June 2026.
Last updated at 08/06/2026 12:56:45
BMW E90 335d M57 3.0L - Liqui-Moly Pro-Line Diesel Cleaner - 500mL: Cleans the injection system and combustion chamber while increasing cetane number
Delivery $53.71
LIQUI MOLY - Pro-Line Diesel System Cleaner
Delivery $19.95
Liqui Moly Pro-line Diesel System & Injector Cleaner Treatment 500ml
Delivery $16.26
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
3 x Liqui Moly Pro Line Diesel System Injector Cleaner Flush Treatment 500ml | 5156
6 x Liqui Moly Pro Line Diesel System Injector Cleaner Flush Treatment 500ml | 5156
originally posted on ebay.com
I bought a Laguna 2.0 dci.... Idle was rough to the point of almost stalling on tick over. I changed the fuel filter... Oil and filter....Air filter.. Boost sensor.. still had the uneven idle when hot. I then suspected a faulty or fouled up injector... after doing some research reading reviews etc I I decided to give this product a go... added it to half a tank of diese.. drove the car for about 20 mins and it has cured the problem!... I have added a second can to a full tank this time and I have to say it runs like a different car....if there is something physically wrong with a component on your car it won't fix that... it can't... but if you suspect blocked injectors or fuel system this is definitely worth a go.... I will now be running one through every 6 ... MoreI bought a Laguna 2.0 dci.... Idle was rough to the point of almost stalling on tick over. I changed the fuel filter... Oil and filter....Air filter.. Boost sensor.. still had the uneven idle when hot. I then suspected a faulty or fouled up injector... after doing some research reading reviews etc I I decided to give this product a go... added it to half a tank of diese.. drove the car for about 20 mins and it has cured the problem!... I have added a second can to a full tank this time and I have to say it runs like a different car....if there is something physically wrong with a component on your car it won't fix that... it can't... but if you suspect blocked injectors or fuel system this is definitely worth a go.... I will now be running one through every 6 months. This cleaner works and saved me a lot of money... highly recommended.
originally posted on ebay.com
Carefully follow the instructions and my engine feels like new born. Fill first can on almost empty tank and drive at least 30min. Add 15 litres of fuel and the second can. Acceleration has improved, and most importantly the anoying rough idle has completely vanished on my 3.0L VW diesel. Apparently there is also better emissions and a better fuel economy to be expected. But for me a clean and smooth running engine was what I wanted, and it is what I got! Better acceleration was a surprise bonous.
originally posted on ebay.com
My diesel car was running rough from cold . I was sceptical, but just a few miles into my newly treated fuel. Big difference ! Generally running a LOT better.
| United States | EUR |
| Brand class | Premium |
| Volume | 0.500 |
| Fuel type | Diesel |
| Additive application | Fuel system cleaning |
BMW E90 335d M57 3.0L - Liqui-Moly Pro-Line Diesel Cleaner - 500mL: Cleans the injection system and combustion chamber while increasing cetane number
Delivery $53.71
LIQUI MOLY - Pro-Line Diesel System Cleaner
Delivery $19.95
Liqui Moly Pro-line Diesel System & Injector Cleaner Treatment 500ml
Delivery $16.26
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
3 x Liqui Moly Pro Line Diesel System Injector Cleaner Flush Treatment 500ml | 5156
6 x Liqui Moly Pro Line Diesel System Injector Cleaner Flush Treatment 500ml | 5156
I bought a Laguna 2.0 dci.... Idle was rough to the point of almost stalling on tick over. I changed the fuel filter... Oil and filter....Air filter.. Boost sensor.. still had the uneven idle when hot. I then suspected a faulty or fouled up injector... after doing some research reading reviews etc I I decided to give this product a go... added it to half a tank of diese.. drove the car for about 20 mins and it has cured the problem!... I have added a second can to a full tank this time and I have to say it runs like a different car....if there is something physically wrong with a component on your car it won't fix that... it can't... but if you suspect blocked injectors or fuel system this is definitely worth a go.... I will now be running one through every 6 ... MoreI bought a Laguna 2.0 dci.... Idle was rough to the point of almost stalling on tick over. I changed the fuel filter... Oil and filter....Air filter.. Boost sensor.. still had the uneven idle when hot. I then suspected a faulty or fouled up injector... after doing some research reading reviews etc I I decided to give this product a go... added it to half a tank of diese.. drove the car for about 20 mins and it has cured the problem!... I have added a second can to a full tank this time and I have to say it runs like a different car....if there is something physically wrong with a component on your car it won't fix that... it can't... but if you suspect blocked injectors or fuel system this is definitely worth a go.... I will now be running one through every 6 months. This cleaner works and saved me a lot of money... highly recommended.
Carefully follow the instructions and my engine feels like new born. Fill first can on almost empty tank and drive at least 30min. Add 15 litres of fuel and the second can. Acceleration has improved, and most importantly the anoying rough idle has completely vanished on my 3.0L VW diesel. Apparently there is also better emissions and a better fuel economy to be expected. But for me a clean and smooth running engine was what I wanted, and it is what I got! Better acceleration was a surprise bonous.
My diesel car was running rough from cold . I was sceptical, but just a few miles into my newly treated fuel. Big difference ! Generally running a LOT better.
First time I used it and its amazing my suzu engine was raving so high because of poor quality diesel Now within few miles my car became a car again not a airplane
My lovely volvo has had a problem with jerky acceleration. I've spent hundreds trying to resolve. I saw a advert for this and thought I'll try it for less than 15. My volvo is driving like brand new. No jerking black smoke on hard acceleration gone! Mpg risen also. Cant believe it took approx 30 to work. And 300 miles in. So happy. Every full service this product will be used. Saved me on 5 new injectors happy customer here
I try many injectors cleaners even for buses and this definitely working but I using it different than on instructions. I've been using straight from can to running engine I'm not stick to tank and diluted by 70 liters diesel because for me not make sense to cleaning dirty injectors I can undetstood if is more treatment like prevention by not be dirty in future.
Worked like magic cleared the injectors. Car stopped juddering like mad in the cold early mornings. Overall felt a smoother drive and acceleration on my BMW f10. I used 1ltr in a quarter tank and gave my car a 20 mile round trip on the motorway.
I've put this injector cleaner in my 2008 Civic 2.2 cdti with 159k on the clock. I can certainly feel a difference down at low revs. It's made a difference to the pick up and boost. The engine also sounds quieter . I used half the can for one tank of fuel and used to rest on the second fill up. I've used Liqui Moly products for a few years now and they're one of the few additive companies I trust. I would certainly recommend this cleaner to anyone that's experience excessive exhaust smoke, a noisy engine or general sluggishness.
Little bit hopeful this would work as my xtrail 07 2.2dci was a noisy beast. Constantly tapping away at cold and first gear, sounded awful like a tractor. Knew it wasnt cam chain asjust had that replaced. Anyway next was injectors being a problem, bit juddery but the noise was like a tractor tapping away. Half a can of this in a half a tank of fuel and its about 70-80% quieter, runs a lot smoother, and i done about 70 miles on a 1/8th tank instead of nearly a quarter. Even misses said its quiet now. I know its not a permanent fix but its well worth the money. Time will see in the morning as it was awful starting cold, really noisy but ive just serviced it the week before and we shall see if this has improved it. Update. Its taken about half the noise away from cold. ... MoreLittle bit hopeful this would work as my xtrail 07 2.2dci was a noisy beast. Constantly tapping away at cold and first gear, sounded awful like a tractor. Knew it wasnt cam chain asjust had that replaced. Anyway next was injectors being a problem, bit juddery but the noise was like a tractor tapping away. Half a can of this in a half a tank of fuel and its about 70-80% quieter, runs a lot smoother, and i done about 70 miles on a 1/8th tank instead of nearly a quarter. Even misses said its quiet now. I know its not a permanent fix but its well worth the money. Time will see in the morning as it was awful starting cold, really noisy but ive just serviced it the week before and we shall see if this has improved it. Update. Its taken about half the noise away from cold. Still very smooth from the start. Extremely impressed by this stuff, will never buy redex again
This is used by Sreten on his M239 restorations channel.I have no way of telling if it 'works'And it is in a car that someone else drives.So I may never know.***I changed my name for the 'share my data with everyone tick'Otherwise I would have aborted there and then***
| United States | EUR |
| Brand class | Premium |
| Volume | 0.500 |
| Fuel type | Diesel |
| Additive application | Fuel system cleaning |
