Parts for your 2021 Suzuki Splash-Fuel filter

2021 Suzuki Splash fuel-filter — what’s actually fitted and what owners should know

Short answer: there isn’t a separate, serviceable fuel filter on petrol 2021-registered Suzuki Splash models. Technical sources including the Suzuki Splash/Ritz K10B/K12B workshop manual (Fuel System section) and the Suzuki Electronic Parts Catalogue show that the petrol Splash uses a returnless EFI setup with the fuel filter built into the in-tank pump module as a fine strainer. There’s no inline canister filter to replace during routine servicing. In markets that offered the DDiS diesel Splash, there is a traditional engine-bay fuel filter that’s replaced on schedule — but that doesn’t apply to most petrol cars.

Why go this way? Modern returnless fuel systems keep pressure stable by locating the pump and filtration in the tank. That means fewer external connections and better control of fuel temperature and vapour, and it leverages consistently clean petrol in Australia and New Zealand. The strainer protects the injectors for the life of the pump, and if it ever clogs, the fix is to replace the pump module assembly rather than swapping a separate filter.

• Lower chance of leaks: fewer hoses and clamps outside the tank.
• Stable pressure and quieter running: pump sits in a cooled fuel bath.
• Minimal maintenance: no scheduled fuel-filter change on petrol models.

What should owners do instead? Stick to quality fuel, avoid running the tank right down (keep at least a quarter tank where possible), and service the car on time. If the Splash starts hard, hesitates under load, feels flat at higher revs, or the pump gets noisy, ask a technician to do a fuel pressure test and scan for codes like P0087 (fuel rail/system pressure too low). If pressure is out of spec on a petrol Splash, the workshop will typically quote a complete in-tank pump module replacement, which renews the strainer at the same time.

Technical sources referenced: Suzuki Splash/Ritz (K10B/K12B) Service Manual – Fuel System, Suzuki Electronic Parts Catalogue (EY/EX model) – Petrol pump module with integrated strainer, HaynesPro/Autodata service data noting non-serviceable in-tank filter for petrol Splash. Diesel DDiS variants are documented with a replaceable engine-bay fuel filter.

Popular questions about 2021 Suzuki Splash fuel-filter

Does a 2021 Suzuki Splash have a replaceable fuel filter?
For petrol models, no — the filter is a fine strainer built into the in-tank pump module and isn’t a separate service item. Diesel DDiS versions (where sold) do have a conventional replaceable filter in the engine bay. If you’re unsure which engine you’ve got, check the build plate or handbook.

How often should the Splash’s fuel filter be changed?
Petrol: there’s no scheduled interval because there’s no separate filter to change, the strainer is renewed if the pump module is replaced. Diesel: most schedules call for a fuel filter change roughly every 20,000–40,000 km (or as specified in the owner’s manual and local service data), especially if fuel quality is variable.

What are the signs of a clogged fuel filter or strainer on a Splash?
Common clues include sluggish acceleration, surging at motorway speeds, hard starting after sitting, or a loud, whining fuel pump. A mechanic can confirm with a fuel pressure test and a scan, if it’s a petrol Splash and pressure is low, the usual remedy is an in-tank pump module replacement.