Parts for your 2018 Suzuki Splash-Fuel filter

2018 Suzuki Splash fuel filter — what’s fitted and how to look after it

Based on Suzuki workshop literature for the Splash/Agila platform, the Suzuki Electronic Parts Catalogue, and the Maruti (Suzuki) Ritz service manual for the same drivetrain family, a fuel filter is indeed used on the 2018 Suzuki Splash. Petrol variants (1.0 and 1.2) do not have a separate inline filter under the car or in the bay, instead, the filter is built into the in-tank fuel pump module and is not scheduled for routine replacement. Diesel DDiS models have a standalone, serviceable fuel filter in the engine bay that forms part of regular maintenance.

This fuel filter’s job is simple but crucial: keep grit, rust and muck out of the injectors so the Splash runs smoothly and efficiently. On petrol Splash models, the in-tank filter/strainer protects the high-pressure system right from the source. Because it sits inside the tank and the fuel quality in AU/NZ is generally high, Suzuki doesn’t list it as a periodic service item, it’s typically only addressed if the pump module is being replaced or if there’s known contamination.

For diesel DDiS versions, it’s a different story. Diesel systems are fussier about cleanliness and water. The dedicated diesel fuel filter traps fine particles and usually includes a water-separation function. Workshops should replace this filter at intervals in the 20,000–40,000 km range (or annually in harsh or dusty use), following the service schedule that applies to the specific market and engine code. After replacement, the system needs priming and checks for leaks. If fitted with a water sensor or drain, it’s smart to drain any accumulated water between services.

Signs the Splash may be due for attention include:

• Hard starting, hesitant acceleration, or noticeable loss of power
• Rough idle or louder-than-usual pump whine
• For diesel, warning lamps linked to water-in-fuel (where equipped)

Good practice under the bonnet includes using quality fuel from busy stations, keeping the tank reasonably full before long storage, and replacing the fuel cap seal if it’s perished. For petrol Splash owners, there’s usually no filter to “change” during regular servicing, any filter work involves removing the pump module from the tank, replacing the internal strainer or module, and renewing the seal—best left to a workshop due to fire safety and sealing requirements. For diesel owners, insist on an OE-quality filter, new O-rings, correct torque on fittings, and proper priming to avoid air in the system.

Technical sources referenced: Suzuki Splash/Opel Agila B workshop manual (fuel system section), Suzuki Electronic Parts Catalogue listings for petrol in-tank pump modules and diesel service filters, and Maruti Suzuki Ritz (Splash drivetrain) service manual guidance on filter service intervals and water separation.

• Does a 2018 Suzuki Splash have a replaceable fuel filter?
  Petrol models use an in-tank, non-serviceable filter integrated with the pump. Diesel DDiS models have a separate, replaceable filter in the engine bay.
• How often should the fuel filter be changed?
  Diesel: typically every 20,000–40,000 km (or yearly in tough conditions). Petrol: no scheduled replacement, address only if the pump module is serviced or contamination is suspected.
• Where is the fuel filter located?
  Petrol: inside the fuel tank as part of the pump module. Diesel: in the engine bay (often near the firewall or guard), accessible for routine servicing.