What are the signs of timing chain problems in a Suzuki SX4 S-Cross 1.4 Boosterjet-

The K14C Boosterjet engine uses a timing chain rather than a belt. Common symptoms of timing chain stretch include rattling noise on cold start, persistent ticking or rasping from the engine, loss of performance, and a check engine light with cam/crank correlation codes.

How long does a Suzuki SX4 S-Cross 1.4 Boosterjet engine replacement take-

A full Suzuki SX4 S-Cross 1.4 Boosterjet engine replacement typically takes 3-7 working days. Engine removal and installation takes 1-2 days, testing and calibration takes 1 day, with total turnaround 3-7 days depending on parts availability.

What's the difference between the SX4 S-Cross 1.4 Boosterjet and the 1.6 M16A petrol engines-

The 1.4 Boosterjet (K14C) produces 138hp and 230Nm torque, is turbocharged, and was fitted from 2018-2020. The 1.6 M16A produces 118bhp and 156Nm torque, is naturally aspirated, and was fitted from 2013-2018. The Boosterjet produces significantly more torque (230Nm vs 156Nm) and is more fuel-efficient (52.3mpg vs 43.5mpg for the M16A).

Suzuki SX4 S-Cross Specialists

Suzuki SX4 S-Cross 1.4 Boosterjet Engine Replacement Compare Prices & Get Quotes

Get free, no-obligation quotes from trusted UK Suzuki SX4 S-Cross 1.4 Boosterjet specialists. Compare prices on reconditioned, rebuilt and used K14C turbo engines - all with transparent pricing and 12-month warranty options.

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Suzuki SX4 S-Cross 1.4 Boosterjet Engine

from£1,800 to £2,800

Usedfrom £800
Reconditionedfrom £1,800
Common codesK14C

Suzuki s-cross-sx4 Suzuki SX4 S-Cross 1.4 Boosterjet Used Engine — K14C

Suzuki s-cross-sx4Used Engine — K14C

Suzuki s-cross-sx4 Suzuki SX4 S-Cross 1.4 Boosterjet Reconditioned Engine — K14C

Suzuki s-cross-sx4Reconditioned Engine — K14C

Suzuki s-cross-sx4 Suzuki SX4 S-Cross 1.4 Boosterjet Rebuilt Engine — K14C

Suzuki s-cross-sx4Rebuilt Engine — K14C

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3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

Suzuki SX4 S-Cross 1.4 Boosterjet Engine History & Specs at a Glance

The Suzuki SX4 S-Cross 1.4 Boosterjet joined the UK line-up in 2018 as a replacement for the naturally aspirated 1.6-litre M16A petrol engine that had powered the original SX4 since 2006. The K14C Boosterjet brought turbocharged performance to Suzuki's family crossover - a 1.4-litre direct-injection turbo producing 138hp, replacing the older 1.6-litre unit with improved torque, refinement and fuel economy. This marked a significant shift for the S-Cross, aligning the petrol offering with Suzuki's modern Boosterjet engine family.

2013
SX4 S-Cross launched in the UK with M16A 1.6-litre naturally aspirated petrol (118bhp) and D16AA 1.6 DDIS diesel (118bhp) options.
2016
Minor facelift introduced; M16A petrol and D16AA diesel continue.
2018
SX4 S-Cross receives major engine update: M16A replaced by K14C 1.4-litre Boosterjet turbocharged petrol (138hp, 230Nm torque). Available in SZ-T and SZ5 trim levels. Boosterjet offers 52.3mpg combined with 130g/km CO2.
2020
1.4 Boosterjet mild-hybrid (K14D) introduced, adding 48V starter-generator and 10kW assistance. Replaces non-hybrid K14C.
2021
S-Cross facelift with updated grille and bumpers; K14D Boosterjet mild-hybrid continues.
2022
present - S-Cross remains available with K14D Boosterjet mild-hybrid, offering 129hp and improved fuel economy.

Every engine fitted to the Suzuki SX4 S-Cross 1.4 Boosterjet is covered below, with UK rebuilt pricing and known failure points for this specific K14C turbocharged unit.

Engine Codes & Pricing

Suzuki SX4 S-Cross 1.4 Boosterjet Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

K14C — 1.4-litre Petrol Turbocharged Boosterjet (2018-2020)

Power Output: 138hp (140PS) at 5,500rpm; 230Nm torque at 2,500-3,500rpm
Years Fitted: 2018-2020 (UK)

Can’t find your exact engine code?-> Get quotes for K14C Suzuki SX4 S-Cross 1.4 Boosterjet engine replacement

-> Get quotes for K14C Suzuki SX4 S-Cross 1.4 Boosterjet engine replacement

Common Problems

Suzuki SX4 S-Cross 1.4 Boosterjet Engine Problems Repair Cost vs Replacement

The Suzuki SX4 S-Cross 1.4 Boosterjet uses the K14C 1.4-litre turbocharged direct-injection petrol engine. This modern Boosterjet unit is broadly reliable, with fewer reported issues than the older M16A petrol or D16AA diesel it replaced. However, owners should be aware of timing chain stretch at higher mileage and carbon buildup due to direct injection. Rebuilt K14C engines through EnginesMarket include upgraded components addressing the original failure points, plus a minimum 12-month unlimited-mileage warranty.

Common failure points and repair options

Timing Chain Stretch

Affected: Suzuki SX4 S-Cross 1.4 Boosterjet (K14C, 2018-2020)
Typical failure mileage: 62,000-93,000 miles (100,000-150,000km)

Root cause

The K14C uses a timing chain rather than a belt. Chain stretch can occur over time, leading to rattling noise on cold start, persistent ticking, loss of performance, or a check engine light with cam/crank correlation codes.

Repair options

Repair tier	Dealer price	Specialist price
Timing chain & tensioner replacement	£1,200-£2,000	£800-£1,400
Full replacement - rebuilt K14C engine	£3,000-£5,000	£2,200-£3,200

Our recommendation

Address any rattling noise from the engine bay immediately. Early timing chain replacement (£800-£1,400 at a specialist) is significantly cheaper than a full engine rebuild (£2,200-£3,200) if the chain fails catastrophically. Use a Suzuki specialist familiar with the K14C Boosterjet engine - they'll know the specific tensioner revisions and can fit upgraded parts.

-> Compare Suzuki SX4 S-Cross 1.4 Boosterjet timing chain repair costs

Carbon Buildup on Intake Valves

Affected: Suzuki SX4 S-Cross 1.4 Boosterjet (K14C, 2018-2020)
Typical failure mileage: 40,000-80,000 miles

Root cause

The K14C uses direct fuel injection, which means fuel is sprayed directly into the combustion chamber rather than over the intake valves. This design means intake valves don't get cleaned by fuel, leading to carbon deposits accumulating over time. Symptoms include reduced power, rough idle, and decreased fuel economy.

Repair options

Repair tier	Dealer price	Specialist price
Walnut blasting / intake valve cleaning	£500-£900	£350-£600
Full replacement - rebuilt K14C engine	£3,000-£5,000	£2,200-£3,200

Our recommendation

Carbon cleaning is a sensible preventative measure on any direct-injection engine. It's far cheaper than a full engine replacement and can restore lost performance. Combine with a full service including new spark plugs and oil change for best results.

-> Compare Suzuki SX4 S-Cross 1.4 Boosterjet carbon cleaning costs

Don't Let Engine Failure Write Off Your Suzuki SX4 S-Cross 1.4 Boosterjet

The Suzuki SX4 S-Cross 1.4 Boosterjet is a family crossover with a broadly reliable modern engine. However, timing chain stretch and carbon buildup are real considerations as these cars age and accumulate mileage. EnginesMarket connects you with vetted UK specialists who know the K14C Boosterjet inside out. Every rebuilt engine comes with a minimum 12-month unlimited-mileage warranty, upgraded components addressing the original failure points, and nationwide delivery options.

Compare Suzuki SX4 S-Cross 1.4 Boosterjet Engine Replacement Prices Now ->

FAQ

Suzuki SX4 S-Cross 1.4 Boosterjet Engine ReplacementFrequently Asked Questions

Everything Suzuki SX4 S-Cross 1.4 Boosterjet owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

A rebuilt K14C 1.4-litre Boosterjet engine for the Suzuki SX4 S-Cross typically costs £2,200-£3,200 supply-only, with fitting adding approximately £500-£800 at a specialist. Dealer prices can reach £3,000-£5,000 for a full replacement.

Used K14C engines: £800-£1,500
Reconditioned units: £1,800-£2,800
Rebuilt with 12-month warranty: £2,200-£3,200

-> Get a personalised Suzuki SX4 S-Cross 1.4 Boosterjet engine quote

A 2018-2020 Suzuki SX4 S-Cross 1.4 Boosterjet typically holds £8,000-£14,000 of value. A full engine replacement at £2,200-£3,200 represents approximately 16-25% of the vehicle's value - a sensible investment if the rest of the car is in good condition.

Well-maintained examples: replacement strongly recommended
High-mileage or poor condition: weigh against overall vehicle value

-> Compare Suzuki SX4 S-Cross 1.4 Boosterjet replacement vs repair costs

Yes - the K14C Boosterjet is considered one of Suzuki's most reliable modern engines. Unlike the D19AA 1.9 DDIS diesel found in earlier SX4 models (which suffered injector and DPF issues), the K14C has few widespread failure reports. The main considerations are timing chain stretch at higher mileage and carbon buildup due to direct injection - both are manageable with preventative maintenance.

-> Get Suzuki SX4 S-Cross 1.4 Boosterjet engine diagnostics

The K14C Boosterjet engine is used across multiple PSA and Suzuki vehicles, including the Peugeot 308, Citroën C4, and DS3. However, fitment between vehicles is NOT interchangeable - engine mounts, wiring looms, ECU calibration, and drivetrain configuration differ between Suzuki and PSA applications. Always source the correct K14C engine for your Suzuki SX4 S-Cross with the correct engine code and chassis fitment.

-> Get the correct Suzuki SX4 S-Cross 1.4 Boosterjet engine for your vehicle

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Comparing Suzuki SX4 S-Cross 1.4 Boosterjet engine quotes is free, fast, and carries no obligation. Enter your registration above to get matched with vetted UK specialists who supply the correct K14C Boosterjet unit for your exact S-Cross - whether you need a used engine, a reconditioned unit, or a full rebuild with warranty.

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