The Peugeot 508 1.6 THP (156 hp) Automatic, introduced as part of the first generation (508 I, Phase I) between 2010 and 2014, represented a key offering in Peugeot’s mid-size sedan lineup. Positioned as a more efficient and accessible alternative to the higher-powered variants, this model aimed to balance performance with fuel economy, appealing to a broader customer base. The 508, intended as a replacement for both the 407 and 607, was a significant model for Peugeot, representing a move upmarket in terms of design and perceived quality. This particular variant played a crucial role in establishing the 508’s presence in European markets, where fuel efficiency and moderate power outputs were highly valued.
Technical Specifications
| Brand | Peugeot |
| Model | 508 |
| Generation | 508 I (Phase I, 2010) |
| Type (Engine) | 1.6 THP (156 Hp) Automatic |
| Start of production | 2010 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 10.2 l/100 km (23.1 US mpg, 27.7 UK mpg, 9.8 km/l) |
| Fuel consumption (extra urban) | 5.3 l/100 km (44.4 US mpg, 53.3 UK mpg, 18.9 km/l) |
| Fuel consumption (combined) | 7.1 l/100 km (33.1 US mpg, 39.8 UK mpg, 14.1 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9.2 sec |
| Acceleration 0 – 62 mph | 9.2 sec |
| Acceleration 0 – 60 mph | 8.7 sec |
| Maximum speed | 220 km/h (136.7 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 9 kg/Hp, 110.6 Hp/tonne |
| Weight-to-torque ratio | 5.9 kg/Nm, 170.2 Nm/tonne |
| Power | 156 Hp @ 6000 rpm |
| Power per litre | 97.6 Hp/l |
| Torque | 240 Nm @ 4000 rpm (177.01 – 1032.59 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | 5FV EP6CDT |
| Engine displacement | 1598 cm3 (97.52 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 4.25 l (4.49 US qt | 3.74 UK qt) |
| Coolant capacity | 6.4 l (6.76 US qt | 5.63 UK qt) |
| Kerb Weight | 1410 kg (3108.52 lbs) |
| Max. weight | 2015 kg (4442.31 lbs) |
| Max load | 605 kg (1333.8 lbs) |
| Trunk (boot) space – minimum | 473 l (16.7 cu. ft.) |
| Trunk (boot) space – maximum | 515 l (18.19 cu. ft.) |
| Fuel tank capacity | 72 l (19.02 US gal | 15.84 UK gal) |
| Length | 4792 mm (188.66 in.) |
| Width | 1920 mm (75.59 in.) |
| Height | 1456 mm (57.32 in.) |
| Wheelbase | 2817 mm (110.91 in.) |
| Minimum turning circle | 11.9 m (39.04 ft.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 6 |
| Gearbox type | Automatic transmission |
| Front suspension | Independent type McPherson |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 215/60 R16; 215/55 R17; 235/45 R18 |
| Wheel rims size | 16; 17; 18 |
Powertrain & Engine Architecture
The heart of the 508 1.6 THP Automatic is the 5FV EP6CDT engine, a 1.6-liter turbocharged inline-four cylinder petrol engine. This engine is part of the Prince engine family, a collaborative development between PSA Peugeot Citroën and BMW. The “THP” designation stands for “Turbo High Pressure,” indicating the use of a twin-scroll turbocharger and direct fuel injection. The direct injection system, operating at pressures up to 150 bar, ensures precise fuel delivery and contributes to improved efficiency and reduced emissions. The engine features a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing gas flow for enhanced performance. The automatic transmission paired with this engine is a six-speed torque converter automatic, chosen for its smoothness and ease of use. This transmission was designed to provide comfortable shifting and efficient power delivery, catering to drivers prioritizing convenience over outright performance.
Driving Characteristics
The 156 hp and 240 Nm (177 lb-ft) of torque produced by the 1.6 THP engine, when coupled with the six-speed automatic, resulted in a respectable, though not particularly sporty, driving experience. Acceleration from 0 to 100 km/h (0-62 mph) took around 9.2 seconds, and top speed was limited to 220 km/h (136.7 mph). The automatic transmission, while smooth, did exhibit some hesitation during quick acceleration, and the gear ratios were tuned more for fuel economy than aggressive driving. Compared to the more powerful 2.0-liter petrol or 2.2-liter HDi diesel variants, the 1.6 THP Automatic felt noticeably less responsive. However, it offered a more refined and relaxed driving experience, particularly in urban environments. The turbocharger provided a useful boost in mid-range power, making overtaking maneuvers manageable, but the engine lacked the outright punch of its larger counterparts.
Equipment & Trim Levels
The 508 1.6 THP Automatic was typically offered in mid-range trim levels. Standard equipment generally included air conditioning, a CD/MP3 stereo system, power windows and mirrors, and central locking. Higher trim levels added features such as alloy wheels, a multi-function steering wheel, cruise control, and a more sophisticated infotainment system. Interior upholstery was typically cloth, with leather options available as an upgrade. Safety features included ABS, ESP (Electronic Stability Program), and multiple airbags. Optional extras often included a panoramic sunroof, parking sensors, and a navigation system.
Chassis & Braking
The 508 featured a McPherson strut front suspension and a multi-link rear suspension, providing a good balance between ride comfort and handling. The suspension was tuned to prioritize comfort, resulting in a relatively soft ride quality. Front brakes were ventilated discs, while rear brakes were solid discs. The ABS (Anti-lock Braking System) and ESP (Electronic Stability Program) provided enhanced safety and control. The 1.6 THP Automatic models typically rode on 16- or 17-inch wheels, with tire sizes ranging from 215/60 R16 to 215/55 R17.
Market Reception & Comparison
The Peugeot 508 1.6 THP Automatic was generally well-received by critics as a practical and efficient mid-size sedan. It was praised for its comfortable ride, spacious interior, and attractive styling. However, some reviewers criticized the automatic transmission for its occasional hesitation and the engine for its lack of outright performance. Compared to the 2.0-liter petrol and 2.2-liter HDi diesel variants, the 1.6 THP Automatic offered better fuel economy but less performance. The HDi diesel models were particularly popular in Europe due to their superior fuel efficiency and torque. The 1.6 THP Automatic appealed to buyers who prioritized comfort, fuel economy, and affordability over sporty driving dynamics.
Legacy
The 1.6 THP engine, while generally reliable, has been known to exhibit issues with carbon buildup on the intake valves, particularly in vehicles that primarily see short-trip driving. Regular maintenance, including the use of high-quality fuel and occasional intake valve cleaning, can help mitigate this issue. The six-speed automatic transmission has proven to be relatively durable, but like any automatic transmission, it requires regular fluid changes to ensure optimal performance and longevity. Today, the Peugeot 508 1.6 THP Automatic represents a relatively affordable entry point into the 508 model range, offering a comfortable and practical driving experience for those seeking a well-equipped and fuel-efficient mid-size sedan.
