The Ford Focus ST170, produced between 2002 and 2005, represented a performance-oriented variant of the first-generation Focus hatchback (internally designated the Mk1, or Focus Hatchback I). Positioned as the flagship model within the Focus range, the ST170 aimed to deliver a more engaging driving experience than the standard trims. It was primarily marketed in Europe, offering a sporty alternative to rivals like the Volkswagen Golf GTI and Opel/Vauxhall Astra GSi. The ST170 was available in both 3-door and 5-door body styles, catering to different preferences for practicality and aesthetics.
Technical Specifications
| Brand | Ford |
| Model | Focus |
| Generation | Focus Hatchback I |
| Type (Engine) | 2.0 16V ST170 (172 Hp) |
| Start of production | 2002 |
| End of production | 2005 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 3/5 |
| Fuel consumption (urban) | 12.4 l/100 km (19 US mpg, 22.8 UK mpg, 8.1 km/l) |
| Fuel consumption (extra urban) | 7.5 l/100 km (31.4 US mpg, 37.7 UK mpg, 13.3 km/l) |
| Fuel consumption (combined) | 8.8 l/100 km (26.7 US mpg, 32.1 UK mpg, 11.4 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.5 sec |
| Acceleration 0 – 62 mph | 7.5 sec |
| Acceleration 0 – 60 mph | 7.1 sec |
| Maximum speed | 220 km/h (136.7 mph) |
| Weight-to-power ratio | 7.2 kg/Hp, 138.2 Hp/tonne |
| Weight-to-torque ratio | 6.3 kg/Nm, 158.2 Nm/tonne |
| Power | 172 Hp @ 7000 rpm |
| Power per litre | 86.5 Hp/l |
| Torque | 197 Nm @ 5500 rpm (145.3 lb.-ft. @ 5500 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | ALDA |
| Engine displacement | 1988 cm3 (121.32 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 84.8 mm (3.34 in.) |
| Piston Stroke | 88 mm (3.46 in.) |
| Compression ratio | 10.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 4.25 l (4.49 US qt | 3.74 UK qt) |
| Coolant | 5.75 l (6.08 US qt | 5.06 UK qt) |
| Kerb Weight | 1245 kg (2744.76 lbs.) |
| Max. weight | 1640 kg (3615.58 lbs.) |
| Max load | 395 kg (870.83 lbs.) |
| Trunk (boot) space – minimum | 350 l (12.36 cu. ft.) |
| Trunk (boot) space – maximum | 1210 l (42.73 cu. ft.) |
| Fuel tank capacity | 55 l (14.53 US gal | 12.1 UK gal) |
| Length | 4178 mm (164.49 in.) |
| Width | 1702 mm (67.01 in.) |
| Height | 1481 mm (58.31 in.) |
| Wheelbase | 2615 mm (102.95 in.) |
| Front track | 1494 mm (58.82 in.) |
| Rear (Back) track | 1477 mm (58.15 in.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Wishbone |
| Rear suspension | Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 215/45 R17 |
Powertrain & Engine Architecture
The heart of the ST170 is the 2.0-liter, naturally aspirated inline-four cylinder engine, designated the ALDA code. This engine was a significant upgrade over the standard 2.0-liter units found in other Focus models. It featured a higher compression ratio (10.2:1) and revised cylinder head with larger intake and exhaust ports, contributing to increased airflow. Fuel delivery was handled by a multi-port fuel injection system. The engine utilized a double overhead camshaft (DOHC) valvetrain, optimizing valve timing for improved performance. The ST170 exclusively came with a Getrag M66, 6-speed manual transmission, chosen for its robust construction and precise shift feel. This transmission was crucial in harnessing the engine’s power and providing a more engaging driving experience.
Driving Characteristics
The ST170 offered a noticeably more spirited driving experience compared to lower-spec Focus models. The 172 horsepower and 145 lb-ft of torque provided brisk acceleration, with a 0-60 mph time of around 7.1 seconds. While not a class leader in outright speed, the ST170 excelled in its handling and responsiveness. The 6-speed gearbox allowed drivers to keep the engine in its optimal power band, and the well-tuned suspension provided a good balance between comfort and control. The steering was direct and communicative, enhancing driver confidence. Compared to the later, more powerful Focus ST models, the ST170 felt more accessible and less prone to torque steer, making it a rewarding car to drive on both winding roads and in everyday traffic.
Equipment & Trim Levels
The ST170 came reasonably well-equipped as standard. Key features included sports seats with partial leather trim, air conditioning, alloy wheels (typically 17-inch), and a sports-tuned suspension. The interior featured a unique instrument cluster with distinctive graphics. Optional extras included a sunroof, rear parking sensors, and upgraded audio systems. The ST170’s interior, while functional, was not overly luxurious, reflecting its focus on performance rather than outright comfort. The exterior styling was also subtly enhanced with a body-colored rear spoiler and unique front fog lights.
Chassis & Braking
The ST170 benefited from a revised chassis compared to standard Focus models. The suspension was lowered and stiffened, and the track was slightly wider. The front suspension utilized wishbones, while the rear featured a coil spring setup. Braking duties were handled by ventilated discs at the front and solid discs at the rear, equipped with an Anti-lock Braking System (ABS) as standard. While the braking performance was adequate for the car’s performance level, it wasn’t a standout feature. The ST170’s tires were typically 215/45 R17, providing a good balance of grip and ride comfort.
Market Reception & Comparison
The Ford Focus ST170 was generally well-received by automotive critics. It was praised for its engaging handling, responsive engine, and overall value for money. However, some critics noted that the interior was somewhat basic and that the engine lacked the outright punch of some of its rivals, such as the Volkswagen Golf GTI. Fuel economy was reasonable for a performance hatchback, averaging around 26.7 US mpg in combined driving. Compared to the later 1.6-liter turbocharged Focus ST, the ST170 offered a more linear power delivery and a more traditional driving experience. The ST170 also proved to be relatively reliable, with few major mechanical issues reported.
Legacy
The Ford Focus ST170 holds a respected position among enthusiasts as a capable and enjoyable performance hatchback. The ALDA engine, while not the most technologically advanced, proved to be durable and relatively easy to maintain. Today, well-maintained examples of the ST170 are becoming increasingly sought after by collectors and enthusiasts. Common issues include wear and tear on suspension components and occasional problems with the cooling system. However, parts availability remains good, and the ST170’s relatively simple construction makes it a viable option for those seeking a classic performance car that is still enjoyable to drive.
