I've recently bought a 2016 1.2 tsi skoda rapid 81kw cjzd engine. I've read a few posts that the direct fuel injection system can cause carbon build up over the intake valves as the fuel doesnt get sprayed over the intake valves it goes direct into the cylinders. Does anyone know if my engine type will have direct injection or has injectors that spray over the intake valves (helps clear carbon build up)? Does anyone have any experience of carbon build up in this engine type, I've searched high and low and cannot find an answer  any help would be appreciated!

Honestly never read anything bad about that engine.

Its predecessor CJZA has some fairly notorious issues but the beltdrive 1.2 hasn't generated anything like the same amount of bad press.

 

 

Edited 11 March, 20215 yr by camelspyyder

As I see it, all direct injection petrol engines that do not have additional port injection, will suffer in this way, by the way, your engine only has direct injection.

 

The worse affected direct injection petrol engines are the ones without any charged induction, and within the VW Group modern fleets that meant that the 4.2 V8 would end up losing a bit of power as its inlet side got a bit clogged up and would need a good old blasting out using crushed walnut shells, these smaller turbo charged engines, while clogging up slowly should do suffer the power drop off so quickly as they have forced or charged induction.

 

High mileage cars, what ever point the "high" bit becomes active at, will inevitably start to suffer and need cleaned out using walnut blasting.

 

Paying for funky "cleaning up and power releasing" via adding "good" stuff or alternative fluid while cleaning, will never get rid of what is clogging up the cylinder head inlet area.