Fiesta ST 1.6 EcoBoost (2013-2017) Buyers Guide: What You Need to Know
The Ford Fiesta ST 1.6L EcoBoost model (also known as the Mk7 ST, ST180 or ST200) produced between 2013 and 2017, is a beloved hot hatch known for its agile handling, punchy turbocharged engine, and affordable running costs. Whether you're in the market for one as a daily driver or a weekend fun car, it's important to understand the key areas to inspect and be aware of potential problems before making your purchase.
This buyer's guide will walk you through what to look for, common problems, and some tips on fixing issues if they arise.
If you’re already a Fiesta ST owner – you may find the following guides useful:
Why Choose the Fiesta ST?
The Fiesta ST offers a great blend of performance and practicality. Its 1.6L turbocharged EcoBoost engine produces 180-197 horsepower, which, combined with its lightweight chassis, delivers great driving dynamics. It’s a driver’s car, offering sharp handling, responsive steering, and a spirited drive without breaking the bank.
We've personally owned a number of Ford Fiesta ST180s - they're a great choice for anyone looking to jump into their first performance orientated car, or for those that may be downsizing, but don't want to loose a dynamic, fun drive.
However, as with any used car, particularly performance-oriented models, it’s essential to check for potential wear and tear, especially given that some of these vehicles are now 11 years old – some of which may have been modified and then returned to standard during their lifetime.
What to Check Before Buying a Fiesta ST 1.6 EcoBoost (2013-2017 Mk7 ST)
- Engine Health and Performance
The 1.6 EcoBoost is generally reliable, but any turbocharged engine requires attention. When inspecting a Fiesta ST, pay particular attention to the engine's sound and feel.
- Check for smoke: Blue smoke from the exhaust could indicate burning oil, while black smoke might suggest a problem with the turbocharger.
- Idle smoothness: A rough idle can be a sign of carbon buildup on the valves, a common issue in direct-injection engines like the 1.6 EcoBoost.
- Turbo whine: Listen for abnormal turbo whine or rattling. These could point to turbocharger failure or boost leaks.
- Low Boost/Erratic Boost: Boost solenoids are a common replacement part for the 1.6 EcoBoost Engine.
- Clutch and Gearbox Condition
As a performance car, the clutch and gearbox may have taken some hard use if the previous owner drove aggressively.
- Clutch wear: Check for slipping when accelerating hard, and listen for any unusual noises when pressing the clutch pedal. If the clutch feels excessively heavy or stiff, it may need replacing.
- Gear shifts: Ensure the manual transmission shifts smoothly. Grinding or difficulty engaging gears could indicate synchro wear, which may require gearbox work.
- Gear Synchros: The Fiesta ST can show signs of synchromesh wear in the gearbox, this is exhibited by struggling to get into reverse, first or possibly second gear.
- Suspension and Handling
The Fiesta ST is known for its sharp handling, thanks to a stiffer suspension setup. However, this setup can wear out faster on rough roads.
- Suspension knocks: Listen for knocks or clunks when going over bumps. This could indicate worn bushings or ball joints. Common knocks on the Fiesta ST include the lower control arms (front wishbones) or rear beam bushes.
- Alignment issues: Test drive the car and pay attention to steering feel. If the car pulls to one side, it could be due to alignment issues or worn suspension components.
- Check the tires: Uneven tire wear is a clear indicator of alignment problems or worn suspension parts.
- Brakes
Brakes are another area to pay close attention to, particularly because performance cars like the Fiesta ST are often driven hard.
- Brake wear: Check for squeaking or grinding noises, which could indicate worn brake pads or discs. Look at the condition of the discs for any deep grooves or warping.
- ABS and brake warning lights: Ensure that no warning lights appear on the dash during a test drive.
- Calipers Sticking: It is well documented that the Fiesta ST can experience sticking slider pins, this can be resolved fairly easily, however it can contribute to odd braking behaviour, noises and abnormal pad wear.
Common Problems and Fixes for the Fiesta ST (2013-2017)
- Coolant Loss and Head Gasket Issues
One of the more notorious issues with the 1.6 EcoBoost engine is coolant loss, often leading to head gasket failure. This is more common in earlier models but something to be aware of.
- Signs: Overheating, coolant level dropping frequently, white smoke from the exhaust.
- Fix: Replacing the head gasket can be costly, but addressing coolant leaks early (such as from the coolant tank or hoses) can prevent more significant problems. Ford later released an updated head gasket design to improve durability.
- Faulty Turbo Wastegate
Some owners have reported wastegate rattle, particularly when the engine is cold. This issue can reduce boost pressure, resulting in a loss of power.
- Signs: Metallic rattle during cold starts or when accelerating lightly.
- Fix: This often requires replacing the turbo or wastegate actuator, which can be costly. However, aftermarket solutions are available, and upgrading to a more robust unit may enhance performance. JXL Performance Recommends the Turbosmart 7psi actuator
- Carbon Buildup
As a direct-injection engine, the Fiesta ST is prone to carbon buildup on the intake valves over time, which can reduce performance and fuel economy.
- Signs: Rough idle, reduced throttle response, misfires.
- Fix: The solution is to perform a "walnut blasting" procedure, which involves blasting the intake valves with crushed walnut shells to remove carbon deposits. This is a fairly common maintenance item on direct-injection engines.
- Rear Axle Knock
Some Fiesta ST owners have reported a knocking sound coming from the rear axle, especially over rough roads. This is usually caused by worn rear suspension components.
- Signs: A knocking sound when driving over bumps.
- Fix: This can typically be solved by replacing worn bushings or shock absorbers.
- SYNC System Issues
The Ford SYNC infotainment system, especially in early models, can suffer from glitches or become unresponsive.
- Signs: Touchscreen freezing, Bluetooth connectivity issues.
- Fix: Resetting the SYNC system often helps. Ford released updates for SYNC to fix various bugs, so ensuring the car has the latest software installed is a good idea.
Final Thoughts
The 2013-2017 Ford Fiesta ST 1.6 EcoBoost is a fantastic hot hatch that delivers great performance for the money. However, like any performance car, it's crucial to check for wear and tear, especially in high-stress components like the clutch, suspension, and turbocharger.
With the right due diligence, you can enjoy a thrilling, reliable driving experience. Be mindful of potential issues like coolant leaks and carbon buildup, but rest assured that many of the common problems can be fixed, often with aftermarket improvements. Happy hunting!