Injection Cleaner

[svenson]

i own a DI engine with problematic injectors which need to be replaced every 60- 80.000 km and they cost about 2000 euros.
if i use an injection cleaner ,like the one from liqui moly ,will it do any good? will i keep my injectors clean or will i just succeed only to delay the damage ?
do these cleaners for injectors have any disadvantage? do they do any harm to a significant part?

Injection Cleaner

Removes deposits on injection valves, intake valves, spark plugs and in the combustion chamber and prevents new deposits from forming. Eliminates starting problems and rough engine running. Maintains all components of the gasoline injection system. Protects the entire fuel system against...

www.liqui-moly.com

 

[RooflessVW]

How do the injectors fail?

 

[JavierH19]

How do those injectors fail. And you can determine if a cleaner could help by checking the fuel trim with a scan tool. I have a generic $5 elm327 that lets me check that so just about anything should. If the trim is beyond a few percent it could help. But if it's less than 3% it's not enough to matter.

 

[Bjornviken]

I Like the Red Line injector cleaner products better.

 

[Trav]

How do the injectors fail?

The seals inside the injectors deteriorate and they leak into the cylinders or these are piezo injectors they have an oil inside to cool the element, the oil viscosity changes over time causing them to stick and misfire. These are not cheap and cleaning them is sketchy it is better to replace them. Using a cleaner in the tank will not do anything except lighten the wallet.

 

[totegoat]

I've owned fuel injected vehicles for over 38 years, haven't replaced an injector yet.......

 

[atikovi]

I've owned fuel injected vehicles for over 38 years, haven't replaced an injector yet.......

DI is not the same injectors as in your 1988 Cavalier.

 

[97prizm]

The seals inside the injectors deteriorate and they leak into the cylinders or these are piezo injectors they have an oil inside to cool the element, the oil viscosity changes over time causing them to stick and misfire. These are not cheap and cleaning them is sketchy it is better to replace them. Using a cleaner in the tank will not do anything except lighten the wallet.

What make and model vehicle?

 

[totegoat]

DI engines can have carbon build-up over time, which can be an expensive repair job (no Cavalier here).

 

[Trav]

What make and model vehicle?

BMW 2007 and up some models, MB some models.

Genuine BMW 13538648937 Fuel Injector; Index 11 or Higher SKU: 1440191-BM-13538648937 - BMW | 13537537317 13537565138 13537585261 1353758526111

Upgrade your BMW's fuel system with Genuine BMW Fuel Injector (Part No: 13538648937). Suitable for various BMW models including X5, 535i, and 335i, this injector with Index 11 or higher ensures efficient fuel delivery for optimal engine performance.

www.autohausaz.com

Mercedes Fuel Injector Kit - Bosch 0986435404KT

Mercedes Fuel Injector Kit - Bosch 0986435404KT

www.fcpeuro.com

 

[svenson]

What make and model vehicle?

its in my signature..

DI engines can have carbon build-up over time, which can be an expensive repair job (no Cavalier here).

true,but mine hasn't yet.i mean i haven't checked yet but don't have any usual CBU symptoms. using all these years only ll04 might help, as the experts here claim. or the design of my engine isn't that prone to CBU. but it suffers from DI injectors,its the part fault.

BMW 2007 and up some models, MB some models.

Genuine BMW 13538648937 Fuel Injector; Index 11 or Higher SKU: 1440191-BM-13538648937 - BMW | 13537537317 13537565138 13537585261 1353758526111

Upgrade your BMW's fuel system with Genuine BMW Fuel Injector (Part No: 13538648937). Suitable for various BMW models including X5, 535i, and 335i, this injector with Index 11 or higher ensures efficient fuel delivery for optimal engine performance.

www.autohausaz.com

Mercedes Fuel Injector Kit - Bosch 0986435404KT

Mercedes Fuel Injector Kit - Bosch 0986435404KT

www.fcpeuro.com

my friend told you everything you need to know about that sh@ty part. the funny thing is that it happens mostly on models bought through south europe ,mediteranean,where i bought it too.i dont know if germany ,austria and northern countries had a major problem. uk has the same problem too, from the north..there are hundreds topics with that sh@t. its a build in part thats is faulty .actually no one on earth from bmw gave us a formal responsible answer why is this happening and why is this happening mostly in southern countries and uk. and why they did not replaced with a good mecanism , a new design, that its not faulty. of course when that model was new at that time.now no one concerns.
thank god so far , i replaced for free bcs of good will service. but next time might not be so lucky.