The soul of any Alfa Romeo lies in its engine, and the Giulietta 940 offered a wide range of options,
all turbocharged, to suit different driver profiles.
Gasoline Engines
The gasoline lineup was centered around the 1.4 Turbo (TB) engine, available in various configurations. The
entry-level versions delivered 105 hp and 120 hp, offering adequate performance for daily use.
The major technological highlight was the 1.4 TB engine featuring the MultiAir system. This
innovative technology, developed by Fiat Powertrain, replaces the traditional intake camshaft with an
electro-hydraulic system. This allows for infinitely variable control of valve opening, optimizing air
intake into the cylinder at any engine speed. The result is more power and torque, with lower fuel
consumption and emissions. In the Giulietta, the 1.4 TB MultiAir was offered with 150 hp and 170 hp,
providing an excellent balance between performance and efficiency.
For those who wouldn't compromise on maximum performance, the 1750 TBi (Turbo Benzina iniezione
diretta) engine equipped the top versions, which will be detailed in the next chapter. There was also a 120
hp version factory-prepared to run on LPG (Liquefied Petroleum Gas), a popular option in some European
markets.
Diesel Engines (JTDm)
The line of diesel engines, featuring second-generation Common Rail MultiJet technology (JTDm-2), was
equally complete. The most economical option was the 1.6 JTDm, available with 105 hp and, later, 120 hp.
This engine was known for its low fuel consumption, making the Giulietta a viable option for long distances.
For those seeking more performance without sacrificing economy, the 2.0 JTDm was the ideal choice. It
was offered across a wide range of power outputs over the years, including versions with 140 hp, 150 hp, 170
hp, and even 175 hp. With generous low-end torque, this engine provided vigorous acceleration and safe
overtaking.
Transmissions – Manual vs. TCT
Most versions of the Giulietta came standard with a 6-speed manual transmission, generally praised
for its precision and well-spaced gear ratios.
As an alternative, Alfa Romeo offered the TCT (Twin Clutch Transmission), a 6-speed automated
dual-clutch gearbox. In theory, the TCT combined the best of both worlds: faster gear shifts than a
conventional automatic and superior efficiency compared to a manual. In practice, its behavior was mixed. In
sporty driving, shifts were fast, but in urban traffic, especially in early models, the transmission could
be hesitant at low speeds. The integrated start-stop system was also criticized for being slow to restart
the engine. Over time, software calibration improved, but the TCT never achieved the smoothness of the best
dual-clutch gearboxes on the market. Furthermore, maintenance and potential repairs, such as replacing the
clutch pack, were considerably more expensive than on the manual version.
Engine technical data. Sources not specified.
| Engine |
Engine Code |
Displacement (cc) |
Power (hp @ rpm) |
Torque (Nm @ rpm) |
0-100 km/h (s) |
Max. Speed (km/h) |
Period |
| Gasoline |
| 1.4 TB |
940B1000/940B8000 |
1368 |
105 @ 5000 |
206 @ 1750 |
10.9 |
186 |
2011–2016 |
| 1.4 TB |
198A4000/940B7000 |
1368 |
120 @ 5000 |
206 @ 1750 |
9.4 |
195 |
2010–2020 |
| 1.4 TB MultiAir |
940C2000 |
1368 |
150 @ 5500 |
250 @ 2500 |
8.2 |
210 |
2014–2019 |
| 1.4 TB MultiAir |
940A2000 |
1368 |
170 @ 5500 |
250 @ 2500 |
7.8 (Manual) / 7.7 (TCT) |
218 |
2010–2019 |
| 1750 TBi |
940A1000 |
1742 |
235 @ 5500 |
340 @ 1900 |
6.8 |
242 |
2010–2013 |
| 1750 TBi |
940B2000/960A1000 |
1742 |
240 @ 5750 |
340 @ 2000 |
6.0 |
244 |
2014–2019 |
| Diesel |
| 1.6 JTDm |
940A3000 |
1598 |
105 @ 4000 |
320 @ 1750 |
11.3 |
185 |
2010–2015 |
| 1.6 JTDm |
940C1000/940C5000 |
1598 |
120 @ 3750 |
320 @ 1750 |
10.0 (Manual) / 10.2 (TCT) |
195 |
2015–2021 |
| 2.0 JTDm |
940A5000 |
1956 |
140 @ 3750 |
350 @ 1500 |
9.0 |
205 |
2010–2013 |
| 2.0 JTDm |
940B5000/940C3000 |
1956 |
150 @ 3750 |
380 @ 1750 |
8.8 |
210 |
2013–2019 |
| 2.0 JTDm |
940A4000 |
1956 |
170 @ 4000 |
350 @ 1750 |
8.0 (Manual) / 7.9 (TCT) |
218 |
2010–2013 |
| 2.0 JTDm |
940B4000 |
1956 |
175 @ 3750 |
350 @ 1750 |
7.8 (TCT) |
219 |
2014–2020 |