1.9 or 2.0 diesel - Alfa Romeo Forum
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(Post Link) post #1 of 11 Old 1 Week Ago Thread Starter
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1.9 or 2.0 diesel

Hi All

I've had 3 159's in the past:
2006 2.4 diesel (had for 4 years)
2009 1.9 diesel (rejected after 2 days)
2010 1750 tbi ti (had for 6 months but wanted an SRT8)

Now looking to go back to a 159 after the sale of my 300C SRT8 - I currently use a 1.4 Mito which was my run about car (120 so quite nippy).
So what's the best between the 1.9 and 2.0 dervs? I may also consider another 1750tbi but in ti spec they're quite expensive and trying to save for a Guilia next year - just need something bigger than the Mito

Any advice would be appreciated.

Previous Cars
2003 156 2.0 JTS Turismo saloon in Silver
2006 159 2.4 JTD Lusso saloon with AHM remap and DPF delete - in Silver
2008 Chrysler 300C SRT Design - mapped to 300bhp with lots of other mods - in Silver
2010 159 1750tbi ti saloon - in Stromboli Grey
2006 Chrysler 300C SRT8 - in Silver (now sold :-( )
Current Alfa Mito 1.4 TB 120bhp Veloce - in Red
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(Post Link) post #2 of 11 Old 1 Week Ago
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2.0 if funds stretch to it
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(Post Link) post #3 of 11 Old 1 Week Ago
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2.4 159Ti

2.0 everytime, best of both worlds in terms of performance, economy and it's attached to a better gearbox.

But as above, you'll pay more for one.
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The 2.0 is a better engine.

Most of the unreliability glitches present on the 1.9 such as swirl flaps, clogging EGR and DPF's were sorted on the 2.0
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2.0....more power, more reliability, much smoother and quieter and better economy. If you drove the 1.9 and 2.0 back to back you would be hard pressed to believe they are based on the same engine. A simple box or remap will easily push it to 200 bhp plus and 425 plus nm or torque (I'm at 218 and 449nm) which will out perform any stock motor in the range except the V6.

..and you don't have to pay much more than a 1.9 (I didn't).just got to wait for one to come along with a seller keen to move it on!
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If the engines were equal the Getrag M32 gearbox that the 1.9 is lumbered with should be enough to put anyone off on its own.

The 1.9 fitted to the heavy 159 doesn't exactly make for spririted performance either.
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The 2.0 comes in 170 bhp as well as 136bhp. The lower power engines may not have the F40 gearbox. One of the flaws of the 2.0 is the poor throttle response in 1st and 2nd gear. It's at its worst when cold, but improves as the engine warms up.
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Thanks guys for all the responses - I'll be looking out for the 170 bhp version :-)
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Quote:
Originally Posted by stephenb View Post
The 2.0 comes in 170 bhp as well as 136bhp. The lower power engines may not have the F40 gearbox. One of the flaws of the 2.0 is the poor throttle response in 1st and 2nd gear. It's at its worst when cold, but improves as the engine warms up.
I haven't noticed the poor throttle response on our Giulietta which uses the same engine.

As far as I am aware from here, the 136 and 170 versions of the 159 are different only in terms of engine mapping, so they can both be remapped to around 210 bhp if needed.

Some got the F40 box, some got the C635. The C635 is an OK gearbox, not as strong as the F40- but not as clunky either. An improvement over the M32 none the less.
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There are people with the C635 box already having issues very similar to the M32.

Copied for Autolussos site;

C635 GEARBOX

This is the latest generation of Alfa gearboxes and they suffer very much like the M32 gearbox from bearing failure. We are currently working on a fix for this. News to follow.



Alfa's fitted with this gearbox include:
◾Late Mito's
◾Giulietta 2.0 JTD & 1750 QV
◾Some 2.0 JTD 159's & Others
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I did see that on there ages ago, but apart from some issues with synchros causing issues selecting 1st gear on early boxes there have been no reported issues of bearing problems on the forum similar to those on the M32.


I did have an issue with mine though a couple of years back, I was accelerating up the road and as I was doing so the passenger side wheel hit a pothole which damaged the diff. I ended up fitting a replacement used gearbox (as well as new clutch and flywheel)

That appears an isolated incident though.
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