Ford Focus RS Mk2: The Ultimate Buyer's Guide

If you're in the market for one of the most formidable front-wheel-drive hot hatches ever to grace the roads, the Ford Focus RS Mk2 is a truly compelling proposition. Bursting onto the scene in January 2009, this performance powerhouse not only turned heads with its audacious and aggressive styling but also managed to leave many supercars trailing in its wake. This comprehensive buyer's guide is designed to equip you with all the essential knowledge needed to purchase one of these exceptional machines, from its rich history and technical specifications to the common issues you might encounter and how to navigate the buying process.

The Genesis of a Legend: History of the Ford Focus RS Mk2

Following the conclusion of the Ford Focus RS Mk1's production in 2003 and the subsequent launch of the second-generation Focus the following year, the automotive world eagerly anticipated the arrival of a new RS variant. Enthusiasts and journalists alike pondered when Ford would unleash the Mk2 iteration. The wait wouldn't be long, however. December 2007 marked the first official confirmation that a Mk2 RS was indeed in development, with Ford of Europe announcing its existence. Their press release detailed plans for a concept car to be unveiled in 2008, with the production model set to follow the year after.

Initial concerns arose among enthusiasts when it was revealed that the new RS would remain front-wheel drive and utilise an enhanced Duratec ST engine. This led to fears that the Mk2 RS would merely be an uprated Focus ST. These anxieties were swiftly dispelled with the unveiling of the concept at the 2008 British International Motor Show. The Ford Focus RS Mk2 concept showcased styling that was arguably the most aggressive and bold seen in any hot hatch to date, representing a significant departure from the comparatively understated RS Mk1.

Ford equipped the new RS with distinctive design elements, including a unique bonnet featuring special air exhaust vents, redesigned bumpers and side skirts, and a signature twin-bladed spoiler that continued the RS lineage. Automatic self-levelling Xenon headlights were introduced, complemented by LED rear lights. Dual chrome tailpipes further enhanced the sporty aesthetic.

Unleashing the Beast: Engine and Performance

The heart of the RS Mk2 was its formidable engine. While the Focus ST, launched in 2005, featured a 2.5-litre, 5-cylinder Duratec engine producing 225 hp, Ford significantly amplified this for the RS Mk2. The Duratec engine was tuned to deliver a staggering 305 hp (227 kW) at 6,500 rpm, with a substantial 440 Nm (325 lb ft) of torque available between 2,250 and 4,500 rpm. This immense power surge was facilitated by a larger BorgWarner K16 turbocharger, capable of producing 20.3 psi (1.40 bar) of boost. A new air-to-air intercooler worked in tandem with the larger turbo, and Ford's engineers incorporated a forged crankshaft, silicon-aluminium pistons, graphite-coated cylinder bores, a compression ratio of 8.5:1, and variable valve timing.

This potent combination allowed the RS Mk2 to achieve a quoted 0-100 km/h (0-62 mph) time of under six seconds, with production cars typically recorded at around 5.8-5.9 seconds. The top speed was officially stated to be approximately 262 km/h (163 mph).

Taming the Power: Drivetrain and Suspension

Ford paired the potent engine with a strengthened version of the ST's six-speed manual gearbox. While retaining the same gear ratios as the ST, the transmission received more robust bearings, a reinforced clutch housing, and crucially, a Quaife helical limited-slip differential (LSD). Given that the Focus RS Mk2 remained a front-wheel-drive vehicle, Ford's engineers faced the challenge of managing the considerable torque steer generated by the powerful engine. Their innovative solution was the 'RevoKnuckle' suspension system for the front. This advanced MacPherson strut setup featured a lower scrub radius and kingpin offset compared to conventional designs, crucially avoiding the added weight and complexity of double wishbone or multi-link suspensions.

Complementing the RevoKnuckle system, the RS Mk2 boasted a wider track, enhanced driveshafts, a rear anti-roll bar, revised springs and dampers, and retuned suspension geometry. Ford also developed a specific version of its Electronic Stability Programme (ESP) with Traction Assist (TA) to provide drivers with greater confidence in challenging conditions.

Stopping Power and Interior Comfort

With increased power came a necessary upgrade to the braking system. The front wheels were equipped with 336 mm ventilated discs, while the rear featured 300 mm discs. These formidable brakes were housed within distinctive 19-inch alloy wheels shod with 235/35 tyres.

Inside, the Focus RS Mk2 offered a driver-focused environment, highlighted by unique Recaro sports seats with side bolsters colour-coded to match the car's exterior. Rear passengers were not forgotten, with sculpted Recaro-style seats providing comfort and support. Standard features included manual air conditioning, a Sony radio with a six-disc CD player, and keyless engine ignition integrated with a Thatcham Category 1 alarm system.

For those seeking added luxury, an optional package was available, incorporating dual-zone automatic climate control, automatic headlights, rain-sensing wipers, parking sensors, tyre deflation detection, and a Ford Key-Free system. A more premium luxury package also included a touchscreen DVD navigation system with a seven-inch display. Further optional extras comprised a Bluetooth hands-free system, USB connectivity, and partially leather-trimmed seats.

The RS500: A Limited Edition Icon

In April 2010, Ford introduced the Focus RS500, a special edition model designed as a send-off to the Mk2 RS, with production limited to just 500 units. By this time, Ford had already surpassed its initial sales expectations for the standard RS, having sold over 10,000 units. The RS500 was conceived to celebrate this success.

While the standard RS Mk2 was already exceptionally powerful, Ford pushed the boundaries further with the RS500, extracting approximately 345 hp (257 kW) from the 2.5-litre engine. This performance boost reduced the 0-100 km/h time to an impressive 5.4 seconds and increased the top speed to around 266 km/h (165 mph). These gains were achieved through the fitment of a larger intercooler, a bigger airbox, an improved exhaust downpipe, an uprated fuel pump, and ECU recalibration.

The running gear of the RS500 remained unchanged, as it was deemed more than capable of handling the increased power. Ford even offered the performance pack (known as the MP350 kit) as an aftermarket upgrade for existing RS Mk2 owners. However, those who opted for the upgrade missed out on the exclusive numbered plaque, the distinctive matte-black paint finish, and the red stitching on the steering wheel and seats.

The RS500's enhanced performance generated immense buyer interest, with all 500 units being sold before the price was even announced. The final price was approximately 27% higher than that of the standard RS model.

Ford Focus RS Mk2 Specifications at a Glance

Your Essential Ford Focus RS Mk2 Buyer's Guide

Now that we've explored the history and specifications, let's delve into the crucial aspects of purchasing a Ford Focus RS Mk2. As with any performance vehicle, a well-maintained RS Mk2 will provide immense satisfaction, while a neglected one can lead to significant headaches. Ensuring the car you're considering has been diligently cared for is paramount.

Arranging a Thorough Inspection

An inspection is a critical step in the car-buying process. Here are some key tips to ensure you make an informed decision:

• Inspect in Person: Never buy a performance car like the RS Mk2 sight unseen. Always aim to view the vehicle yourself or arrange for a trusted third party to do so.
• Seller's Location Matters: Try to meet the seller at their home or place of business. This can offer insights into how the car is stored and the type of roads it typically navigates. Rough roads with numerous potholes could indicate accelerated wear on the suspension.
• Morning Viewings are Best: If possible, arrange to view the car early in the morning. This reduces the likelihood of the seller having pre-warmed the engine to mask issues like oil leaks.
• Bring a Helper: A second pair of eyes can be invaluable. A friend might spot something you've missed and offer an objective opinion.
• Avoid Wet Conditions: Inspecting a car in the rain can conceal bodywork and paint defects. If you must view it in the wet, try to arrange a second viewing when it's dry.
• Be Wary of a Fresh Wash: A recently washed car, especially with water still in the engine bay, could be an attempt to hide leaks or other problems.

Assessing Value: How Much is a Ford Focus RS Mk2 Worth?

Determining the exact value of a Ford Focus RS Mk2 is complex, as it depends on numerous factors including its overall condition, specification level, and market location. An RS500 in pristine condition will command a significantly higher price than a standard RS Mk2 that shows signs of hard use. It's advisable to check local auction sites, dealer listings, and classifieds to gauge current market prices for comparable vehicles.

Maintenance Costs: Is the RS Mk2 Expensive to Maintain?

As a performance car, the Focus RS Mk2 will naturally incur higher running costs than a standard Focus or a more modest hatchback. However, many owners find the running costs to be surprisingly comparable to the Focus ST. The expense can escalate when issues arise or when specific, often bespoke, RS parts are required. A poorly maintained RS Mk2 is likely to result in higher ongoing maintenance expenses.

Future Classic Status: Will the RS Mk2 Appreciate?

Many 'RS' badged Fords have achieved classic status, and the Mk2 is undoubtedly one of the most visually striking cars to bear the RS badge. While Ford produced more Mk2s than the first generation, the overall production volume remained relatively limited. RS Mk2 models in excellent condition with low mileage are likely to see the most significant appreciation in value. Currently, prices are relatively stable, but the RS500 variant is considered the most sought-after and is expected to appreciate the most.

Understanding the VIN

The Vehicle Identification Number (VIN) is a unique alphanumeric code assigned to each vehicle during production. It can reveal crucial information, including the model year and manufacturing location. Using a VIN decoder website can help identify if a vehicle has outstanding finance or has been written off. Ford's own services may also provide VIN checks. Be aware that VIN decoder services are often region-specific.

Where to Find the VIN on a Focus RS Mk2:

• Bottom left of the windscreen.
• A sticker on the B-pillar at the bottom of the driver's door.
• Under a carpet or trim cutout in the floor next to the driver's seat (the VIN should be stamped into the metal).

Engine Checks: What to Look For

Upon opening the bonnet, first check the condition of the bonnet struts. Then, conduct a general inspection for the following:

• Damaged or Missing Parts: Look for any components that appear damaged, broken, or are missing. Inquire with the seller about any such findings.
• Cleanliness: While a spotless engine bay can indicate a meticulous owner, it can also be an attempt to conceal issues like oil leaks. Be cautious if the engine bay or underside appears unusually clean or wet, suggesting it has been recently washed to hide problems.
• Modifications: The RS Mk2 is a popular car for modifications. Ensure any modifications are professionally installed and suitable for the vehicle. Avoid cars with excessively high power outputs from questionable tuning, as these can be problematic. Some owners may remove performance modifications before sale to disguise hard use.

Checking the Fluids: A Vital Step

Incorrect fluid levels (both too low and too high) or fluids that haven't been changed regularly are strong indicators of poor maintenance. Neglecting fluid levels and changes can lead to increased wear and potential component failure. It's advisable to check fluid levels before and after a test drive to ensure they remain consistent.

Oil & Oil Filter Service Interval

Confirm with the owner and review the service history to ensure the engine oil and oil filter have been replaced at recommended intervals. Failure to do so is a significant red flag, as contaminated oil and degraded filters can harm the engine. Ford recommends an oil and filter change every 20,000 km (12,500 miles) or 12 months. Many owners opt for more frequent changes, which is a positive sign.

Best Oil for the Focus RS Mk2

Ford specifies a 0W-40 weight oil with the 'WSS M2C937-A' specification. While some owners may use heavier oils for increased power or track use, sticking to the recommended grade is generally best. Reputable 0W-40 options include Castrol and Motul.

Oil Filter Considerations

The oil filter should be replaced with every oil change. The OEM Ford filter is recommended, but good quality aftermarket options are also available. Always check with the owner about the type of filter used.

Assessing Oil Condition

Inspect the oil's condition on the dipstick. Metallic particles or grit indicate potential internal engine wear. Foam or froth can be a sign of overheating and a blown head gasket.

Oil Consumption

The RS Mk2 is not typically known for excessive oil consumption, though this can vary depending on how the car was run-in and its previous use. Ask the owner about oil consumption; if it seems high, further investigation may be warranted.

Oil Leaks

Look carefully for any oil leaks or puddles beneath the car. Significant leaks can be costly to repair. Minor, slow leaks might be acceptable but can be difficult to locate and fix. If leaks are present, try to identify their source and have a Ford specialist inspect them before purchase.

Common Oil Leak Areas:

• Timing Belt Area: Leaks near the timing belt could indicate issues with the oil pressure release valve or camshaft oil seals. It's best to avoid driving the car if these are suspected and consider another vehicle.
• Oil Filter Housing: The original oil filter housing can be fragile and prone to leaks due to its design. Aftermarket replacements are available to rectify this. Check the service history to see if this has been addressed. A faulty oil filter or breather system can sometimes be detected by a 'mooing' sound when the dipstick is removed from an idling engine.

Exploding Plenum Chambers

Some early RS Mk2 models experienced plenum chamber explosions due to backfire. Ford addressed this with a fuelling re-map, but many owners opted for upgraded plenum chambers (e.g., from Mountune). Verify if this issue has been rectified or if an aftermarket chamber has been fitted, especially on higher-powered examples.

Timing Belt Replacement

The Focus RS Mk2 is an interference engine, meaning a failed timing belt can cause catastrophic engine damage. Ford recommends timing belt replacement every 200,000 km (125,000 miles) or 10 years. Ensure this has been done; if not, factor in the cost of replacement. It's also advisable to replace the auxiliary belts, water pump, and tensioners concurrently.

Exhaust System Inspection

Check whether the exhaust system is standard or aftermarket. Corrosion can be an issue, particularly in regions with salted roads. Many owners upgrade to aftermarket systems from brands like Miltek or Mountune. However, if an aftermarket exhaust is from a low-quality, poorly reviewed brand, it might suggest corners were cut elsewhere in the car's maintenance.

What to Look For in the Exhaust:

• Corrosion: Inspect the entire system for rust, especially if the car has been exposed to salted roads or harsh winters. Internal corrosion can also occur.
• Black Sooty Stains: These typically indicate a leak, which might be fixable with a simple weld.
• Cracks or Accident Damage: Dents, cracks, or scratches can result from careless driving and may lead to performance loss or corrosion.
• Poor Repairs: Be wary of shoddy repairs intended for a quick sale.

Listen for any hissing (leaks), chugging (blockages), or rattling (misalignment) sounds from the exhaust.

Cooling System Checks

Cooling system failures can be catastrophic for the engine. Thoroughly inspect the following components:

• Radiator: Check for any signs of leaks. The original radiators fitted to the RS Mk2 are known to be prone to leaking. Look for coloured coolant beneath the undertray or feel the sponge at the bottom of the radiator for dampness.
• Thermostat: Regulates coolant flow.
• Water Pump: Driven by a belt, it circulates coolant. Should be replaced with the timing belt.
• Overflow/Expansion Bottle: Manages air and coolant levels.
• Coolant Lines: Inspect hoses for leaks or degradation.
• Intercooler: Cools air from the turbocharger. Check for warping or damage.

Ensure coolant levels are consistent before and after a test drive. The coolant should be reddish; brown or muddy coolant indicates poor maintenance. Coolant should be changed at least every ten years, using the WSS-M97B44-D standard.

Signs of Overheating and Head Gasket Failure

Be vigilant for the following symptoms, which could indicate overheating or a blown head gasket:

• Bubbles in the radiator or expansion tank.
• White, milky engine oil.
• Fouled spark plugs.
• Low cooling system integrity.
• Engine oil smelling of coolant.
• Sweet smell from the exhaust.
• External coolant leaks below the exhaust manifold.
• Excessive white smoke from the exhaust.
• High engine temperatures or heat radiating from the engine.

If the temperature gauge sits high or behaves erratically, it may signal a cooling system issue. If it consistently reads low, a faulty thermostat could be the cause.

First Start-Up and Idle Behaviour

Ask the seller to start the car for the first time during your inspection. Observe any smoke or vapour from the exhaust. Crucially, ensure the seller does not rev the engine excessively while it's cold. A high idle speed (over 1,000 rpm) is normal on a cold start, which should settle to around 800 rpm once warm. Poor idle could stem from various issues, including a dirty throttle body or intake system.

Spark Plug Condition

If accessible, inspect the spark plugs. Their condition can reveal a lot about the engine's health and running. Spark plugs should ideally be replaced every 60,000 km (37,500 miles) or 3 years.

Understanding Exhaust Smoke

A small amount of vapour on startup is normal, especially in cold weather, but persistent or excessive smoke indicates a problem:

• White Smoke: Often signifies water in the cylinders, potentially a blown head gasket. A sweet smell suggests coolant is involved.
• Blue/Grey Smoke: Can indicate worn piston rings, valve seals, or turbocharger issues. Oil burning can produce this colour smoke.
• Black Smoke: Suggests the engine is running too rich, likely due to air intake restrictions.

Signs of a Failing Turbocharger

Turbochargers can fail with age and mileage. Signs of a failing turbo include:

• Distinctive blue/grey smoke from the exhaust.
• Excessive oil consumption.
• Slow acceleration or delayed boost pressure.
• The 'Check Engine' warning light illuminated.

Listen for whistling, rumbling, or high-pitched metallic sounds, which can signal a failing turbo bearing.

Engine Rebuilds and Swaps

A rebuilt engine is acceptable if carried out by a reputable specialist. Always check for receipts and reviews of the work performed. Engine swaps are rare on the RS Mk2, but if encountered, ensure the work was done professionally. It's advisable to buy a car with at least 5,000 km on a rebuilt or swapped engine to allow for initial settling.

Compression Testing

While not essential for every purchase, a compression test can reveal engine health. The key is ensuring cylinder readings are within 10% of each other. If considering a compression test, have it performed by a specialist.

Transmission and Clutch Checks

The six-speed manual transmission is generally robust but can suffer from repeated aggressive starts. Test all gears at various engine speeds, ensuring smooth engagement. The clutch should engage around 7-10 cm from the floor. Check for clutch slippage by engaging a higher gear than appropriate and accelerating; if revs rise without corresponding acceleration, the clutch is slipping. Clutch replacement can be expensive, so ensure it's in good condition.

Suspension, Steering, and Brakes

Inspect suspension and steering components for wear, damage, or corrosion. Look for signs of poor alignment, such as uneven tyre wear or a car pulling to one side. Check the brakes for responsiveness; spongy or weak brakes, or pulling to one side under braking, indicate potential issues. Warped discs can cause juddering through the steering wheel.

Wheels, Tyres, and Bodywork

Examine the wheels for curb damage and check tyre tread depth, as RS Mk2s can be hard on tyres. Ensure tyres are evenly worn and from reputable brands. Inspect the bodywork for rust, particularly around the wheel arches, sills, and window frames. Be vigilant for signs of accident damage, such as misaligned panels, inconsistent paintwork, or replaced parts.

Interior and Electronics

The interior is generally hard-wearing, but check the seat bolsters for wear. Ensure all electronics, including windows, stereo, and air conditioning, function correctly. Verify that you have both sets of keys. Check for dampness in the cabin and boot, which can indicate perished seals.

General Car Buying Advice

Research is Key: Understand the exact specification and condition you desire before you start looking.

Shop Around: Don't settle for the first car you see. Compare multiple vehicles to get a sense of the market.

Test Drive Thoroughly: Drive as many cars as possible to understand what a good RS Mk2 feels like.

Negotiate Smartly: Use any identified faults to negotiate the price. Be prepared to walk away if the deal isn't right.

Service History is Crucial: A comprehensive service history is a vital indicator of how well the car has been maintained.

Key Questions to Ask the Seller:

• How often do you drive the car?
• When was the last service and who performed it?
• When was the timing belt last replaced?
• What is the car's oil consumption?
• Have there been any modifications?
• Has the car ever overheated or suffered head gasket failure?
• Has the vehicle been in any accidents?
• Is there any outstanding finance on the car?
• Is there any rust present?
• When were the brake pads last replaced?

Dealbreakers: When to Walk Away

Be prepared to walk away from a Focus RS Mk2 if it exhibits any of the following:

• Overheating problems or blown head gasket.
• Significant crash damage.
• Outstanding finance.
• Suspiciously low-quality modifications.
• Major engine or transmission issues.
• Significant rust problems.
• An unforthcoming owner.

The Ford Focus RS Mk2 remains a highly desirable hot hatch, offering exhilarating performance and aggressive styling. By conducting thorough research and a meticulous inspection, you can significantly increase your chances of finding a well-maintained example that will provide years of driving enjoyment.

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