What's the general view of the 1750tbi engine? - Alfa Romeo Forum
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What's the general view of the 1750tbi engine?

Father is looking at a 159 1750tbi to replace his 156v6 ti Sportwagon.

My Mother has a 06 Brera 2.2SV which she's owned since new and whilst she seems to like it, both myself and my Dad find the engine to be, well, crap.

With respect to the 1750, are there any known issues with them? Are they proving to be reliable?

TIA for your thoughts.

(Anyone interested in the 156? - See sig for details)
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Good performance and reasonable economy (at least better than the 2.2).
Though I'm sure there's been a few people with big turbo issues. Not sure if they're isolated incidents.

Prices for that engine seem to be all over the place, but this looks to be incredible value: Alfa Romeo 159 1.8 TBi Lusso 4dr
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^ That is a really good price, I paid 7K 2 months ago for similar spec, but it had 10k extra miles and the paintwork needed attention.

I get around 28-30mpg driving like a mad man on the motorway, you can see many others experiences here http://www.alfaowner.com/Forum/alfa-...i-economy.html (159 1750 TBi Economy)
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I quite like the 1750 but in the 159 its still feels like not quite 'enough' engine. I quite like the 2.2. Sure its not naturally quick and needs to be worked to perform, which makes it thirsty, but it sort of suits the car. A bit like a grown up 156 1.6 TS and I've had plenty of enjoyable drives in one of those.

Common problems are "cam carrier gasket" failing and leaking oil into the spark plug holes, except its not like a rocker cover gasket, it is more like what the 1.9 JTD 16v has where it holds down the cams. Its also just a silicone instant gasket.

Injectors cause petrol dilution of the oil. Oil & filter change interval is way too long due to this.

Oil feed supply to the turbo has a habit of blocking up like the arteries of someone who eats too many fryups. Kills the turbo eventually. Partly due to long oil change intervals, partly maybe due to the petrol, partly due to the heat of that oil feed pipe due to its location. Turbo failure due to this. Not exactly common, but not uncommon either.

1750 is a bit of a halfway house between a JTDM and a benzina. It has the best of both worlds in a lot of respects but I'm not all that taken with it. I think I'd rather choose between being in a 2.4 JTDM and being faster or being in a 2.2 JTS and being slower but enjoying the nice revvy 4 pot and crisp response. If I could only have one car though, then it would be tough and the 1750 is probably one of the best all-rounders. If you do like performance and don't like diesels then its no doubt the one to go for. 2.2 JTS is too slow, 3.2 JTS too thirsty.

PM me with an idea of what you want for the wagon - such a shame its not a manual with a 3 litre but these things can be done. Also, is it a 500 a year car or a 295 a year car? On an 06 it could be either.
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I had a a go in one before taking the plunge on a V6.

I was impressed.

Performance was good and it was very tractable the car I had a go in pulled nice and cleanly from low rpm in 3rd and had decent mid range

The only down side was the engine note was a little flat

As for reliability I've not seen that many threads re problems on the forum, it's certainly seems no worse than any of the other engine options reliability wise
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Last edited by Peter RM; 17-05-16 at 21:29.
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Hey all,
Here's my fave review of the Brera (and a 1.75 tbi) from a passionate Alfa fan. Overall, he actually say it's no mountain pass barnstormer, but it's actually not bad against the competition at the time.


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I have the TBi and my thoughts are
Good - Pulls nice and has a decent turn of speed. Not a heavy engine so no horrendous under steer.
Bad - in town mpg is brutal (20-21mpg), exhaust note is as mentioned flat as a pancake (sounds like any other 4 cylinder car)

To be honest if it had 250bhp and a fruity exhaust note I think it would be perfect.
I'm considering a custom exhaust and a remap at some point but all remaps seems to be 600+ which I think is a joke and the exhaust prices are also way over a normal cars custom exhaust price, The joys of Italian car ownership I suppose. I'm too used to Saab, there were guys on forum doing stage 3 maps for 100!!!

Niggles with mine - only a water leak, common fault traced to a splitting header tank bottle. It comes away at the seam where 2 half's are joined.
other than the water leak its been a few months of trouble free driving and I still love it and can forgive her the 21mpg LOL

PS mine has 51k miles on it.
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Bought mine at 28k; now 2.5 years on it's at 66k. Lovely engine, eager and nimble (in a big car) - the Italian speciality! Two issues over those years, the split cooling header tank and later a broken cooling pipe which lost all my coolant in the middle of a journey. But the engine, it's great.
I use Selenia sport power oil, change every 10k, and Shell v power nitro+ (which l need to change quite often?). Overall mpg is around 28, I once drove 70 miles deliberately Miss Daisy and got 44.
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Unfortunatelly there is no ideal 159 petrol engine. I used to have diesel 1.9 16V saloon remapped to 190BHP/380Nm, but after 6 years I needed change to estate(family expansion), and wanted petrol this time. I did testdrive of 3.2JTS, but that dissappointed with performance, fuel consumption and a number of cases read on polish forum with serious engine failure (nice sound though), so went for 1.75TBI.
There is no engine sound at all in TBI - it is very quiet - my wife's Giulietta 1.4TB stock exchaust is wild thing comparing to TBI's. Engine behaves a bit like it was turbo diesel - e.g. it does not rev up that much as some other pertrol (e.g. vs 156 2.5 V6 I had pleasure to drive). It is not too much economical though in terms of fuel consumption as wll. But as others said, still it is nice thing if you do not like diesel and want bit more.
My TBI was remapped to 240BHP/370Nm for RON98 fuel (stock was 210BHP/330Nm), drives even nicer, though for front wheel drive car sometimes it is bit too much now (would prefer if car was RWD or AWD for that engine).

Oil changes every 10-15kkm are must to keep turbo healthy, and use better oil than Selenia Star PE 5W40. There were cases where turbo died at 50-100kkm, but usually when people changed oil every 35kkm. Repair as far as I heard can be sorted out in ~EUR400, though if you go to dealer they will offer you new turbo for more than EUR2000 + replace costs.
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I've had my 159 Ti TBi for about 2.5 years and have had no issues with it. I checked with the Alfa dealer that serviced the vehicle prior to purchasing it (from another non Alfa dealer) and they said it was probably the best Alfa they made. I agree with the tractibility of the engine, quite smooth but lacks engine note and noise unless you rev it out, but then fuel economy goes out the window. A bit thirsty for it's size in my opinion. I have oil changes within 12 months and have had no turbo issues. I've also had the cambelt and water pump changed as per schedule. The manual transmission isn't the best, fine when it's in the 'proper changing mood', just sometimes it won't go in a gear which is annoying. I think the overall elasticity of the engine is somewhat more akin to a rotary than a diesel (I also have a Passat 2.0 TDI) which pulls like a locomotive. Handles quite well. Overall a pretty (yes that too) good car overall, nothing brilliant.
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Originally Posted by Alf M. View Post
Bought mine at 28k; now 2.5 years on it's at 66k. Lovely engine, eager and nimble (in a big car) - the Italian speciality! Two issues over those years, the split cooling header tank and later a broken cooling pipe which lost all my coolant in the middle of a journey. But the engine, it's great.
I use Selenia sport power oil, change every 10k, and Shell v power nitro+ (which l need to change quite often?). Overall mpg is around 28, I once drove 70 miles deliberately Miss Daisy and got 44.
Snap. I've had both those but I can't detect a pattern. The split Header Tank seems to be a general weakness of the 159. The broken cooling pipe on mine was a small connection back to the header at a plastic bridge. Unfortunately the pipe is different sizes on the inlet and outlet of this bridge so it's impossible to rig up a temporary repair.

But the 1750 Tbi is a superb engine. It has the low down torque of a diesel but then pulls all the way to high revs like a petrol. So it does both tasks with nearly the power of a V6. And the way it does it in silence is remarkable.
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I've had my TBi ti for almost 2 months. It spent 10 days in the local dealer waiting for a new header tank from Italy (apparently none on the shelf in the UK ) but running fine now. So far my overall view is I like it but wish it growled a little. I do like the quiet ride and the stealth-like acceleration. I'm averaging 30mpg on combined and a little higher if any of the journeys are long enough. My daily commutes are 1 mile twice daily for school run and 5 miles to work so I'm quite happy with 30mpg. I didn't like the lag at low revs but a remap today should help that. In the main I'm happy just cruising around in a fabulous looking car.
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