Parts for your 2009 Suzuki Splash-Fuel filter

2009 Suzuki Splash Fuel Filter: what’s fitted and what to service

Technical sources including the Suzuki Splash workshop manual (petrol K10B/K12B and 1.3 DDiS diesel), Autodata service schedules, and Bosch ESI[tronic] parts information show two different fuel-filter setups on the 2009 Splash. Petrol models (1.0 K10B and 1.2 K12B) use an in-tank, non-serviceable filter and strainer that’s integral with the fuel pump module, so there’s no separate fuel filter to replace during routine servicing. Diesel models (1.3 DDiS/Fiat Multijet), however, do have a serviceable fuel filter canister in the engine bay.

For petrol Splash owners, that built-in in-tank filter is designed to last the life of the pump under normal conditions. That’s why you won’t find a scheduled fuel-filter change in the factory maintenance plan. Instead, good fuel quality, keeping the tank clean, and replacing the pump module only if pressure or flow falls out of spec is the norm. If a petrol Splash shows low fuel pressure, noisy pump operation, or lean running after contaminated fuel, technicians check the in-tank strainer and pump module rather than searching for an external filter that isn’t there.

For the 1.3 DDiS diesel Splash, the fuel filter absolutely matters. Its job is to keep ultra-fine particles and water out of the high-pressure system, protecting the injection pump and injectors. The canister filter lives under the bonnet (typically on the firewall/inner guard area), and most service data calls for replacement every 30,000–40,000 km or 2 years, whichever comes first. In regions with variable diesel quality, many workshops in Australia and New Zealand prefer the shorter end of that window. Water separation is part of the filter’s role, some housings include a drain or sensor. If there’s a water-in-fuel warning or rough running, hard starting, or lack of power under load, a new filter and proper priming often sort it.

When fitting a diesel filter, use quality, spec-correct parts, replace O-rings, and follow the priming procedure (hand bulb or housing primer) to purge air before starting. Cranking a common-rail diesel without proper priming can be tough on the pump. A workshop will also check for leaks after start-up and confirm rail pressure and smooth idle. Pair the change with a quick look at fuel lines and the tank breather, especially if the vehicle does dusty or rural kilometres.

• Diesel replacement interval: typically 30,000–40,000 km or 2 years
• Symptoms of a clogged diesel filter: hard starting, hesitation, reduced power, water-in-fuel alert
• Petrol models: no external serviceable filter, filter is part of the in-tank pump module

FAQs

Does a 2009 Suzuki Splash have a fuel filter I need to replace?
Petrol models don’t have a separate, serviceable fuel filter — the filter is built into the in-tank fuel pump module, so there’s nothing to change at regular services. The 1.3 DDiS diesel does have a replaceable canister filter in the engine bay.

How often should the diesel fuel filter be changed on a Splash?
Most schedules call for every 30,000–40,000 km or 2 years. If the car sees poor-quality fuel or lots of rural driving, stick to the shorter interval. Always prime the system properly after replacement.

Where is the fuel filter on the 2009 Splash?
On diesel models it’s under the bonnet in a canister housing, usually on the firewall/inner guard area. On petrol models, the filter is part of the fuel pump inside the tank, so there’s no external unit to find or replace.