Suzuki 1.0 and 1.4 Boosterjet (familia de motores K: K10C and K14C/K14D)Fuel pump and high-pressure pump
Direct injection and fuel pump: no documented faults or recalls on the 1.0 and 1.4 Boosterjet
Why this rating?
Low severity: A nuisance or wear. It does not immobilise the car or damage other parts.
Frequency rare: We searched specifically for recalls and fuel pump faults on the Boosterjet in the Spanish, German and French press, and in the TÜV inspection reports for the Vitara and the Swift, without finding a single case or campaign. This contrasts with direct-injection turbo engines from other manufacturers that have had campaigns over the high-pressure pump; there is no data to suggest the Boosterjet shares that problem.[1][2]
Symptoms
- This would be an expected symptom of a high-pressure pump failure, but none of the sources consulted for this engine describes it.[1]Hard to start: other faults that cause it · Garage soon
Why it happens
Affected cars and years
The three engines in this guide share the same type of direct injection with multi-hole injectors; no source documents a fault in any version.[3][4]
| Version | Years | Codes |
|---|---|---|
| 1.0 Boosterjet 110-112 hp (K10C, three-cylinder, 2015-present) | since 2015 | K10C |
| 1.4 Boosterjet 140 hp (K14C, non-hybrid, 2015-2020 in Europe) | 2015–2020 | K14C |
| 1.4 Boosterjet Mild Hybrid 129 hp (K14D, 48V SHVS, since 2020) | since 2020 | K14D |
Models fitted with the affected versions
Suzuki
- Suzuki Vitara2018–2020
- Suzuki Vitara2015–2020
- Suzuki Vitarasince 2020
- Suzuki S-Cross I2016–2020
- Suzuki S-Cross I2016–2020
- Suzuki S-Cross I2020–2021
- Suzuki S-Cross IIsince 2021
- Suzuki S-Cross IIsince 2021
- Suzuki Swift V2017–2024
- Suzuki Swift V2018–2020
- Suzuki Swift V2020–2024
- Suzuki Baleno2016–2022
How much it costs to repair
Includes: Diagnosis of the direct injection system; no replacement applies if no fault is detected.[1]
There is no cost to give because there is no documented fault to repair on this engine.
Prices in Spain, including VAT. A workshop hour costs on average €38–66 at independent garages and €77–134 at dealerships in Spain, depending on the region and the brand. How we calculate costs
How to check for it before buying a used car
- Ask for a fault code scan and check that the engine starts properly both cold and hot.
How to prevent it
- Always fill up at reputable petrol stations: high-pressure direct injection is more sensitive to fuel quality than indirect injection.
Recalls, campaigns and claims
As of 27 September 2026, we have no record of recalls, campaigns or extended manufacturer warranties for this fault. Check with an official dealer using the chassis (VIN) number: they will tell you whether the car has any outstanding campaign.
What owners say
Frequently asked questions
Has the Suzuki Boosterjet had fuel pump campaigns, like other small turbo engines?
We have not found any recall or pattern of high-pressure pump faults for the Boosterjet in the sources consulted.[1][2]
Does the Boosterjet's direct injection need special maintenance?
The sources consulted mention no maintenance different from that of any direct-injection engine: oil changes and good-quality fuel.[3]
What can you do now?
We will put you in touch with a partner only if you authorise it in the form.
Other 1.0 and 1.4 Boosterjet faults
- Low severityFrequency: RareTimingTiming chain: no documented pattern of failuresThe 1.0 and 1.4 Boosterjet use a timing chain, not a belt. We have not found a single documented case of chain stretch or breakage on these engines in the technical press, the German TÜV inspection reports or the owner testimonies we consulted.
- Low severityFrequency: RareLubricationOil consumption: no documented patternNeither the German TÜV inspection reports nor most owner testimonies describe high oil consumption on the 1.0 or the 1.4 Boosterjet; we have only found one isolated case, with no further detail, on a review forum.
- Low severityFrequency: RareElectronics48 V SHVS mild-hybrid system: no documented faults so farThe 48 V mild-hybrid system on the 1.4 Boosterjet (K14D) has been on the European market since 2020; we have not found sources documenting faults with its lithium battery or its starter generator in the time it has been on the road.
More faults with the fuel pump on other engines and cars
- Critical severityFrequency: Common2.0 and 2.5 HybridLow-pressure fuel pump failure: loss of power and fire riskYes: a low-pressure fuel pump with a defective impeller (Denso) affects millions of Toyotas and Lexuses, including Corolla, C-HR, RAV4 and Camry models with these engines. It can cause loss of power or stalling, and in the EU there is also a risk of leaks and fire on 2018-2022 Corolla, C-HR and Auris models.
- High severityFrequency: CommonBMW N54/N55High-pressure fuel pump (HPFP) failureThe N54's high-pressure pump is one of its best-documented failures: most units will have had it replaced at some point. It warns of itself with long cranking and loss of power; the 2010 campaign was US-only.
- High severityFrequency: Common2.2/2.5 dCiInjection pump or injector failureThe 2.2 dCi's common rail injectors fail fairly often on the X-Trail and Almera, with cases of seizing and leaks; on the Almera with the older YD22DDT, the documented fault is in the injection pump electronics, not the injectors.
- High severityFrequency: CommonVW 2.0 TFSI EA113Wear of the high-pressure pump cam followerYes: the 2.0 TFSI EA113's high-pressure fuel pump is driven by the camshaft through a follower (tappet) that wears; if it wears through it can damage the pump or the camshaft, so it should be checked and replaced as a preventive measure.Repair (garage): €250–€900Appears at around 90,000 km
- Critical severityFrequency: Occasional1.8 TDCiBreakage of the timing belt or of the high-pressure pump's belt (running in oil)Yes: the 1.8 TDCi combines a dry belt for the camshafts with a second belt, running in oil, that drives only the Delphi high-pressure pump. If the tensioner fails or replacement is neglected, the engine can cut out suddenly or suffer serious internal damage.Appears at around 110,000 km
- High severityFrequency: Occasional1.5 BlueHDiSeizure of the high-pressure pump and injection systemSome early 1.5 BlueHDi engines have suffered seizure of the Bosch high-pressure pump, with juddering or the engine stalling on the road, sometimes before 50,000 km. The repair means replacing the entire injection system and the fuel tank.
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Sources
Every fact on this page links to its source. If you find an error, let us know.
- Gebrauchtwagen-Check: Grundsätzlich gut: Der Suzuki Vitara beim TÜVVolksstimme (dpa) · General press · published January 2026 · consulted 27 September 2026 · in German
- Suzuki Swift als Gebrauchtwagen: Diese Punkte beanstandet der TÜV häufigT-Online · General press · published October 2025 · consulted 27 September 2026 · in German
- Suzuki motor KWikipedia · Other source · consulted 27 September 2026 · in Spanish
- Suzuki S-Cross 1.4 Boosterjet Mild Hybrid 2020: precios y datos del nuevo SUVAutopista.es · Motoring press · published 12 March 2020 · consulted 27 September 2026 · in Spanish