Parts for your 2008 Suzuki Splash-Tx valve

2008 Suzuki Splash TX-valve: what it does, where it lives, and when to replace it

Yes, the 2008 Suzuki Splash uses a TX‑valve (thermal expansion valve) in its air-conditioning system. This is supported by Suzuki service information for the Splash/Swift platform HVAC, Suzuki Electronic Parts Catalogue listings that name an “expansion valve” for 2008 Splash variants, and common aftermarket HVAC catalogues from DENSO, Nissens and NRF that specify a block‑type expansion valve for this model. That makes a TX‑valve fully relevant to servicing the 2008 Splash’s A/C.

The TX‑valve’s job is to meter refrigerant into the evaporator based on temperature and pressure, keeping superheat in the sweet spot so the cabin gets reliably cold without icing up. On the Splash, the valve is a compact block fitted at the evaporator inlet where the two A/C lines meet at the firewall, access is typically from the engine bay or behind the glovebox, depending on trim and RHD/LHD layout.

There’s no scheduled replacement interval for a TX‑valve, but it’s smart to check it whenever the system is opened or performance drops. Typical clues it’s unhappy include:

• Warm air at idle but cooler on the move
• Rapidly swinging vent temps or evaporator icing
• Odd hissing from the dash and mismatched gauge readings (low side too high or pulled into vacuum)

When replacing, a licenced A/C technician must recover the refrigerant (ARCtick compliance in Australia applies). The usual routine is: evacuate the system, remove the valve and pipes, replace all O‑rings, fit the new TX‑valve, evacuate to deep vacuum to boil off moisture, then recharge by weight to the under‑bonnet label spec with the correct PAG oil balance. If the old valve showed signs of debris or corrosion, budget for a receiver‑drier (often integrated with the condenser) and a proper flush to prevent repeat failures.

For owners, a bit of prevention goes a long way. Keep the cabin filter clean so airflow across the evaporator stays up, run the A/C regularly to circulate oil, and deal with any leaks or weak cooling early—prolonged low charge can cause valve icing and poor lubrication. If the Splash has had a compressor or condenser replaced, it’s prudent to replace the TX‑valve at the same time, it’s inexpensive compared to the labour to revisit the job. Always confirm the correct valve by VIN in the parts catalogue, as there can be build and market variations.

Popular questions

Does a 2008 Suzuki Splash have a TX‑valve or an orifice tube?
It uses a TX‑valve. Suzuki’s parts listings and common supplier catalogues specify a block‑type expansion valve at the evaporator inlet for this model, rather than a fixed orifice tube/accumulator layout.

Where is the TX‑valve located on a 2008 Splash?
It’s mounted at the evaporator where the two A/C lines meet at the firewall. Access varies by trim, some technicians reach it from the engine bay, others remove the glovebox liner for better access.

When should the TX‑valve be replaced?
There’s no fixed interval. Replace it if there’s poor cooling with correct charge, signs of icing or contamination, or whenever the system is opened after compressor failure. Always fit new O‑rings and evacuate/recharge by weight.