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It’s a Short. Above average fascinating, in my estimation:
VW 1.5L vs 1.4L — what a difference
- Thread starter The Artillerist
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Heard a tiguan 1.5 start at work the other day. The chain noise was cringe worthy.
I have a Golf with the 130HP version of the 1.5 with cylinder deactivation. This model is marketed as being the most fuel efficient with lower aero drag and 30mph/1000 rpm gearing. At 68,000 miles the engine is still inaudible to me at idle and overall it's the most refined engine I've ever had. The most astonishing thing about it is the fuel economy. A few days ago I did a 100 mile motorway trip to visit my son. Aided by a strong tail wind the cumulative mpg display maxed out at 83 mpg and then dropped to 81 mpg as we came off onto a few miles of urban roads. The last time I did the same journey it read 70mpg for the trip. I don't expect the cars mpg display is accurate but the car is averaging a real 60mpg imperial based on actual fuel put in the tank. If it stays reliable I will consider it an exceptionally good engine.
Can't be worse than the GM 4 cylinders as of late .. can it?
I think it was due a chain replacement. The only GM 4 cylinder I've heard is my own, and the chain is silent. But then the car is only a year old.
The 1.4 had a dry timing belt, so that wouldn't make chain noise. The latest 1.5 tsi have a wet timing belt.
wemay
Site Donor 2023
Mine (1.5T in a Malibu) is silent as well, even with the engine cover removed. 14500 miles on the odo.
GM had a flop with the Cruze 4 cylinder with all the plastic parts that would eventually leak coolant but I had really good service with mine but it was a 2015 (last year made for that version). I have a 2.0 in my Cadillac and it has a reputation of being a good motor.
My mother has a 2021 Jetta 1.4T with the Aisin 8-speed. I have seen several reports online of high-mileage 1.4T's, and the Aisin transmission should be solid, so I have high hopes overall. They say to inspect the timing belt at 10 years and/or 150k miles, and if it looks fine, then check every 20k miles afterwards- it sounds like these belts are pretty sturdy from what I have read.
The amazing part is that her Jetta gets nearly identical fuel mileage as her 2004 Jetta TDI wagon (auto) did, and that's running 87 octane in the 1.4T.
The amazing part is that her Jetta gets nearly identical fuel mileage as her 2004 Jetta TDI wagon (auto) did, and that's running 87 octane in the 1.4T.
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The EA211 1.5 has a belt and not a chain.
The 1.5 doesn't have a chain, it has a belt. The only chain in the engine is for the oil pump. If you're in the US, the Tiguan is the EA888 2.0L which does have a chain.
This is untrue, the 1.5 also has a dry timing belt. Source: I have had two of them. here is a teardown of one for the head gasket replacement. (Some 2022s had an issue leaking coolant from the large cavity on the back which cools the built-in exhaust manifold, not an internal head gasket failure)
Personally, I think the 1.5 is a big upgrade from the 1.4 in several ways. First, it still has variable displacement but instead of only switching the cam lobes for the center two cylinders it actually changes profile for all 4, which gives the two outer operating cylinders a more effective/efficient cam profile for running in 2 cylinder mode. Also, the active oil separator should help greatly with the intake valve deposits. The 1.4 wasn't very known for those but the 1.5 should be even better. The 1.5 also moved to an all-metal water pump housing vs plastic on the 1.4, I guess VW finally learned from that particular mistake. Some people think plasma coated cylinder is a downgrade because they can't be rebuilt. But they are more durable than cast iron, and have lower friction, so they should need to be rebuilt less in the first place. Not that many people are actually gonna be rebuilding these, if they end up being like the 1.4s the price on a used one is pretty low because they aren't very failure-prone.
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That oil leaked out of the variable valve timing gear since he took the cover off, you can see it. That oil is normally contained by the end caps he mentione
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