The Opel Mokka X 1.4 ecoFLEX Turbo Start/Stop, produced from May 2016 to March 2018, represents a significant iteration of Opel’s popular subcompact SUV. Positioned as a mid-range offering within the Mokka X lineup, this variant aimed to balance fuel efficiency with respectable performance. It was a key model for Opel, particularly in European markets, as the brand sought to capitalize on the growing demand for smaller, more economical SUVs. The Mokka X itself was a facelift and rebranding of the original Mokka, bringing updated styling and technology to the platform. This specific 1.4-liter turbocharged engine and six-speed manual transmission combination was designed to appeal to buyers seeking a practical and reasonably efficient vehicle for daily commuting and family use.
Technical Specifications
| Brand | Opel |
| Model | Mokka |
| Generation | Mokka X |
| Type (Engine) | 1.4 ecoFLEX (140 Hp) Turbo Start/Stop |
| Start of production | May, 2016 |
| End of production | March, 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 7.9-7.6 l/100 km (29.8 – 30.9 US mpg) |
| Fuel consumption (extra urban) | 5.4-5.1 l/100 km (43.6 – 46.1 US mpg) |
| Fuel consumption (combined) | 6.3-6.0 l/100 km (37.3 – 39.2 US mpg) |
| CO2 emissions | 145-139 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9.9 sec |
| Acceleration 0 – 62 mph | 9.9 sec |
| Acceleration 0 – 60 mph | 9.4 sec |
| Maximum speed | 196 km/h (121.79 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 9.4 kg/Hp |
| Weight-to-torque ratio | 6.6 kg/Nm |
| Power | 140 Hp @ 4900-6000 rpm |
| Torque | 200 Nm @ 1850-4900 rpm (147.51 lb.-ft.) |
| Engine layout | Front, Transverse |
| Engine Model/Code | B14NET |
| Engine displacement | 1364 cm3 (83.24 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 72.5 mm (2.85 in.) |
| Piston Stroke | 82.6 mm (3.25 in.) |
| Compression ratio | 9.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 4 l (4.23 US qt | 3.52 UK qt) |
| Coolant | 7.35 l (7.77 US qt | 6.47 UK qt) |
| Kerb Weight | 1319 kg (2907.9 lbs.) |
| Max. weight | 1828 kg (4030.05 lbs.) |
| Max load | 509 kg (1122.15 lbs.) |
| Trunk (boot) space – minimum | 356 l (12.57 cu. ft.) |
| Trunk (boot) space – maximum | 1372 l (48.45 cu. ft.) |
| Fuel tank capacity | 53 l (14 US gal | 11.66 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 1200 kg (2645.55 lbs.) |
| Permitted trailer load without brakes | 500 kg (1102.31 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4275 mm (168.31 in.) |
| Width | 1781 mm (70.12 in.) |
| Width including mirrors | 2038 mm (80.24 in.) |
| Height | 1658 mm (65.28 in.) |
| Wheelbase | 2555 mm (100.59 in.) |
| Front track | 1541 mm (60.67 in.) |
| Rear (Back) track | 1540 mm (60.63 in.) |
| Front overhang | 942 mm (37.09 in.) |
| Rear overhang | 778 mm (30.63 in.) |
| Ride height (ground clearance) | 158 mm (6.22 in.) |
| Minimum turning circle | 11.5 m (37.73 ft.) |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Tires size | 215/65 R16; 215/60 R17; 215/55 R18; 225/45 R19 |
| Wheel rims size | 6.5J x 16; 6.5J x 17; 7J x 18; 19 |
Powertrain & Engine Architecture
The heart of the Mokka X 1.4 ecoFLEX is the B14NET engine, a 1.4-liter inline-four cylinder gasoline engine equipped with a turbocharger and direct fuel injection. This engine is part of Opel’s family of small displacement, turbocharged engines designed for efficiency and adequate power. The engine utilizes multi-point fuel injection and features a single overhead camshaft (SOHC) valvetrain with four valves per cylinder. The turbocharger, coupled with an intercooler, helps to boost power output and improve torque across a wider rev range. The Start/Stop system, standard on this variant, automatically shuts off the engine when the vehicle is stationary (at traffic lights, for example) to further reduce fuel consumption and emissions. The engine is transversely mounted, driving the front wheels through a six-speed manual transmission. This transmission was chosen to maximize fuel economy and provide a more engaging driving experience compared to the optional automatic.
Driving Characteristics
The 140 horsepower and 200 Nm (147.51 lb-ft) of torque offered by the 1.4 ecoFLEX engine provided adequate, though not exhilarating, performance for the Mokka X. Acceleration from 0 to 60 mph took approximately 9.4 seconds, making it competitive within its class. The turbocharger provides a noticeable boost in power during acceleration, but the engine can feel somewhat strained at higher speeds or when fully loaded. The six-speed manual transmission is well-matched to the engine’s characteristics, offering precise shifts and allowing the driver to keep the engine in its optimal power band. Compared to the more powerful 1.6-liter diesel variants, the 1.4 turbo felt less refined and offered less low-end torque, but it was generally quieter and smoother in operation. The gear ratios were tuned for fuel efficiency, meaning the engine speed would be relatively high during highway cruising.
Equipment & Trim Levels
The Mokka X 1.4 ecoFLEX typically came equipped with a reasonable level of standard features. These included air conditioning, a touchscreen infotainment system with Bluetooth connectivity, power windows and mirrors, and a multi-function steering wheel. Safety features such as ABS, electronic stability control, and multiple airbags were also standard. Interior upholstery was typically cloth, with options for upgraded materials available. Common optional extras included parking sensors, a rearview camera, heated seats, and a panoramic sunroof. Trim levels varied slightly depending on the market, but generally, this 1.4-liter variant represented a mid-range offering, bridging the gap between the base models and the more luxurious trims.
Chassis & Braking
The Mokka X utilized a MacPherson strut front suspension and a torsion beam rear suspension. This setup provided a comfortable ride quality, suitable for everyday driving. The torsion beam rear suspension was a cost-effective solution, but it didn’t offer the same level of sophistication as a fully independent rear suspension. Braking duties were handled by ventilated discs at the front and solid discs at the rear. ABS (Anti-lock Braking System) was standard, providing enhanced braking performance and stability. The steering system was an electric power steering (EPS) system, offering light and precise steering feel.
Market Reception & Comparison
The Opel Mokka X 1.4 ecoFLEX was generally well-received by automotive critics as a practical and fuel-efficient SUV. However, some reviewers noted that the engine could feel underpowered, particularly when carrying passengers or cargo. Fuel economy figures were competitive, averaging around 37-39 mpg in combined driving conditions. Compared to the diesel variants, the 1.4 turbo offered lower running costs in terms of fuel, but potentially higher maintenance costs due to the complexity of the turbocharger system. The petrol engine was also generally considered quieter and smoother than the diesel options.
Legacy
The Opel Mokka X, and specifically the 1.4 ecoFLEX variant, has proven to be a relatively reliable vehicle in the used car market. The B14NET engine, while not without its quirks, is generally considered durable if properly maintained. Common issues include turbocharger wear and potential problems with the direct fuel injection system. However, these issues are not widespread and can often be prevented with regular servicing. Today, the Mokka X 1.4 ecoFLEX represents a reasonably affordable and practical option for buyers seeking a small SUV with decent fuel economy and a comfortable ride.
