What engine does the MG TF use?

[OMax]

The MG TF is equipped with a 1.8-liter naturally aspirated engine, which delivers a maximum power of 120 horsepower and a peak torque of 160 Nm. This engine reaches its maximum power output at 5,500 rpm and achieves peak torque at 3,000 rpm. The MG TF features a double-wishbone independent suspension at the front and a multi-link independent suspension at the rear. The dimensions of the MG TF are 3,943 mm in length, 1,628 mm in width, and 1,249 mm in height, with a wheelbase of 2,375 mm. The MG TF also boasts a reinforced front subframe, front cockpit bulkhead, and engine compartment bulkhead, contributing to its impressive high torsional rigidity.

[LeJude]

I've worked on several MG TFs before, which are powered by the British heritage K-series engine. It's a 1.8L naturally aspirated four-cylinder, specifically coded 18K4F, with a DOHC layout. The standard version produces 143 horsepower, while the sport version reaches 160 horsepower thanks to VVC variable valve technology. It's a blast to drive—mid-engine rear-wheel drive paired with a lightweight body, and the engine delivers a clean high-RPM sound. But be mindful of the oil temperature; older cars' cooling systems can be temperamental. The engine bay is right under the trunk, and changing spark plugs requires removing the rear window—quite a hassle of a design.

[MacAnderson]

The most captivating aspect of driving the MG TF is the engine sound. It is equipped with MG Rover's K-series engine, featuring an all-aluminum block weighing only 100 kg, with a 1.8-liter displacement hidden behind the center console. The VVC variable valve timing version can rev up to 7000 rpm without losing power, and the factory-fitted five-speed manual transmission makes hitting 100 km/h in second gear particularly thrilling. However, be aware of common issues, such as the tendency for the head gasket to leak coolant. For older cars, it's advisable to replace it in advance with a reinforced sandwich gasket. It is recommended to use 5W40 full synthetic oil, and always use a torque wrench to tighten the cylinder head bolts during each maintenance.

[DelErin]

That orange convertible TF is equipped with an upgraded 18K4F engine. The biggest improvement over the old MG F is the adoption of a mechanical thermostat, ensuring more stable coolant temperature control. The hydraulic tappet design reduces valve clearance noise, but a brief rattling sound during cold starts is normal. Due to the engine placement, the exhaust headers are prone to rust-through, so used car enthusiasts should remember to bring a cordless drill for trunk inspections. Overseas owners often install turbo kits, as the stock internals can handle up to 0.5bar of boost pressure.

[DelJuniper]

The highlight of the MG TF lies in its powertrain layout—a 1.8L all-aluminum engine is transversely mounted behind the driver's seat, transmitting power through an AP clutch. The standard version delivers 143 horsepower @7000 rpm, while the sport version features a closer-ratio PG1 gearbox. A common issue is the plastic three-way pipe, which is prone to cracking within ten years, leading to coolant leakage. It's recommended to replace it with an upgraded aluminum alloy part and upgrade the water pump at the same time. In the tuning community, swapping in a Honda K20 engine is popular, but if the original setup is well-maintained, the distinctive high-revving scream of the K-series engine is the most authentic experience.