The new 1.8t has slightly more top end than the 1.4 (notice a difference above 4-4.5k) but the new 1.8 also has that difference to the old 1.8. New 1.4 to old 1.8 I would put the 1.4 ahead. That's interesting - I hardly ever take my Mk. 2 1.8 TSi to even 4000 rpm ! It is the mid range I want to be good. Again, this longevity is great if you compare it with the 1.4 TSI by Volkswagen which is the closest competitor among modern engines. We would say that the TSI engines can last up to 150,000 miles and they will bother you with some problems all the way you own the VW car. But the 1.4 Turbo GM engine will not bother you much. Review. THOSE who have an extended family, a modest budget, a regard for solid engineering and a dislike for diesel should try this – the Volkswagen Touran SE 1.4 TSI 140bhp. You can expect a no Foot room is good, however, so guests in the back can stretch out a touch in search of respite. Engine: 1.5-litre four-cylinder turbo petrol: Power: 110kW @ 5000rpm: Torque: 250Nm @ 1500 The advantage of the Eos's metal roof is refinement. The 1.4-litre TSI has always been a smooth lump, and it's no different in the Eos. It's the twin-charger engine, using both a supercharger and 1.4 & 1.5 TSI's or some 1.8 TSI or 1.6TDI's with DQ200 DSG's is something a buyer of those might want to research a bit further. 2009-2012/13 Service Campaign '34F7', 2013-2015 '34H5', and 2015 -2018 some issues and TPI's, Clutch Pack Upgrades and Software Upgrades required by some a ongoing issue that many Dealership or Customer Services staff Good value Octavia gets facelift and new turbocharged 1.4 TSI. This is the facelifted Skoda Octavia, which gets a turbocharged 122bhp 1.4-litre TSI engine for the first time. The car maker The 2011 -2015 MK6 Jetta is powered by a 1.4 TSI twin charged engine. Do not let the small engine fool you into believing this car doesn't have the potential to satisfy your need for speed. This little workhorse won the coveted International Engine of the Year Award for 9 consecutive years. ZBPW7.