Which is Cylinder 1?

[Sharkie]

I have a 2019 AW Polo 1.0TSI 85kw with a misfire on cylinder 1 .... have a coilpack ready to go on, but which 1 is cylinder 1?

[Hillbilly]

Well its usually the one at the front end or are you asking which is no 1 in the firing order Pull leads off 1 at a time and it will show up I thought

[h100vw]

Usually count from the left, where the pulley is.

[Lucas_R]

Some good tech files to download via the links below for this 1.0TSI 3 cylinder engine if you don't have them already.

Also refer to the image below (taken from the 2nd link on page 108 ) if thats of any help.

Spark-ignition three-cylinder engine 1.0l TSI 85 kW series EA211 (eng.) Design and principle of operation. Self-study program 111 Skoda - SKODA Karoq - BRISKODA

Скачивание файла -tsi-engine-1-0-chzd-chzb-chzc-dkrf-dkrc-dkld-chzj-dkra-dsha-repair-manual-eng.pdf

[Sharkie]

Thanks, I'll start there (on the left) replace and scan, and repeat if necessary on the other side if the error persists.

[Sharkie]

So, some background on this misfire.

Have a friend's Polo 85TSI with a misfire. Mechanic told friend its the coilpack. Friend was quoted $900 + labour to replace 3 coilpacks.

I though the price was a bit rich and had 3 spare coilpacks (slightly older revision but still working) so could help friend out.

VCDS scan says its Cylinder 1.
Replaced the coilpack on cyl 1. Still a misfire.
Repeat on 2 and 3, still a misfire.
Replace all 3, still a misfire.
Pulled the 3 sparkplugs out, all very worn and old (probably never been replaced), though the 1 from cyl 1 was slight worse than the other 2.
Bought 3 new sparkplugs.
Fitted the 3 new plugs and refitted the original coilpacks. No misfire ....

Mechanic was doing a dodgy on my friend ...

Bottom line, unless you do it yourself, pick your mechanic carefully, and do not use a generic mechanic (such as my friend did).

[MIG]

Wow that's crazy, and $900 seems worse than the dealer would be, a set of R8 coilpacks maybe?

I saw a video recently when the car was a write-off because a mechanic said it needed an engine, it turns out it only had low compression because of a broken valve spring, fixed on the car without the head off.

[Lucas_R]

Far out how annoyed would you be if you had paid $900 for 3x new spark plugs.........even if they are iridium they are $20 each or so?

[Lucas_R]

I saw a video recently when the car was a write-off because a mechanic said it needed an engine, it turns out it only had low compression because of a broken valve spring, fixed on the car without the head off.

Humble mechanic? Working on that neglected Mk7 GTI?

[MIG]

Humble mechanic? Working on that neglected Mk7 GTI?

Bingo, that's the one!, good channel.