Author Topic: 1.4 TSI engine known problems  (Read 20231 times)

Offline Snoopy

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1.4 TSI engine known problems
« on: 26 July 2011, 18:40 »

Some useful info by, REVO posted on SCN
Something I've written up for our dealers:

Re: 1.4TSI - Twincharger Known Engine Issues to be aware of prior to reflashing a vehicle

Vehicles:   SEAT Ibiza FR, Cupra, Boconegra
VW Scirocco
VW Polo Gti
Skoda Fabia VRS
This document is a collation of engine issues that have been seen on the newer generation Euro5 compliant 1.4TSI – Twincharger engines. Certain issues have been addressed by the manufacturer as described below.

If you see any vehicle with these issues DO NOT flash Revo software onto the ECU without the issues being rectified.

•   Misfiring when cold and vehicle is in warm up state – factory update issued
•   Misfiring due to faulty coilpacks – certain batches of coilpacks were recognised as faulty and would be replaced under warranty
•   Misfiring due to faulty plugs
•   Misfiring due to faulty injectors – there was an injector part number change early 2010 newer injectors are believed to have a more efficient spray pattern to prevent excessive depositing on the piston crown. Injectors were also changed to solve misfire issue along with a factory software update.
•   Water Pump Failures
•   Crankshaft bearing play which can lead to bore wear and piston/piston ring damage

NOTE: there have been numerous cases where completely standard vehicles have suffered from misfires and un-burnt fuel in the cylinder has caused bore-wash leading to piston/piston ring damage.

Not all vehicles suffer from these issues however it’s very important to be aware of the issues prior to flashing the vehicle so you can look out for symptoms of any potential problems. Any issue seen on a standard vehicle will be accentuated if the vehicle is run at a higher level of tune.
Current VWs:    Mk6 GTI    Mk1 GTI    Mk1 Leon

Offline joey

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Re: 1.4 TSI engine known problems
« Reply #1 on: 27 July 2011, 22:33 »
 :huh: thanks

Offline big-pete

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Re: 1.4 TSI engine known problems
« Reply #2 on: 07 November 2017, 04:31 »
for 1.4tsi owners i thought id add an invaluble resource from one of my cupra lads.

but basically to keep a 1.4Tsi happy you need these things:

Plugs- NGK BKR7EIX 2667(ever 15k) cost £25
Oil- 5w40 (quantum platinum/Castrol edge/millers nanodrive) (every 10k) cost- £15/£30/£50(rough)
Decent fuel- Vpower/Momentum( the amount of timing/boost/compression on these wee engines is insane, please dont put tat in it!)

dont drive it like a pansy, get it up to temp then romp on it, carbon build up is the reason for alot of missfires.