Understanding P0175 on the 2024 Volvo S60
The 2024 Volvo S60 continues with the Drive-E 2.0L turbocharged four-cylinder in B5 mild-hybrid (247 hp) and T8 Recharge plug-in hybrid (455 hp combined) configurations. A P0175 code on this luxury sport sedan indicates the fuel system is running excessively rich — the ECM has detected fuel trim corrections exceeding normal limits as it tries to compensate for too much fuel in the combustion mix.
What You'll Notice
- Check engine light on
- Fuel economy below the rated 30 MPG combined
- Black exhaust emissions
- Unsteady idle
- Fuel odor from the exhaust
- Performance limitation message possible
What Causes It on a 2024 S60
1. MAF Sensor Contamination — High Likelihood
Even on a brand-new S60, the MAF sensor can be affected by aftermarket oiled air filters or unusual driving conditions. The Bosch hot-film element is extremely sensitive — a microscopic layer of oil mist causes measurable airflow reading errors, prompting the ECM to over-fuel the engine.
2. O2 Sensor Defect — Medium Likelihood
While rare on a 2024 model, manufacturing defects can affect the upstream wideband O2 sensor. Its position near the turbo outlet subjects it to extreme thermal stress. A defective sensor reporting falsely lean readings triggers continuous fuel enrichment from the ECM.
3. Fuel Injector Defect — Medium Likelihood
A manufacturing tolerance issue in a direct fuel injector can cause slightly excess fuel delivery. On the Drive-E engine, the high-pressure injection system is precision-engineered, and even small deviations from spec can trigger P0175.
4. ECM Software Issue — Low Likelihood
Volvo periodically updates ECM software to refine fuel calibration. A TSB or software update may address P0175 without any hardware changes. This is relatively common in the first year or two of a model update cycle.
Diagnostic Approach
- Dealer TSB check — Always check for Technical Service Bulletins first on a new vehicle.
- Fuel trim review — LTFT above +15% confirms persistent richness.
- Air intake inspection — Verify OEM air filter is installed and intake is properly sealed.
- MAF and O2 sensor testing — Using VIDA diagnostics for Volvo-specific parameters.
- Injector performance verification — Cylinder contribution testing through VIDA.
Warranty Coverage
The 2024 S60 is covered by Volvo's 4-year/50,000-mile new vehicle warranty. All P0175-related repairs should be covered at no cost:
- MAF sensor replacement: $230–$430 (warranty)
- O2 sensor replacement: $280–$530 (warranty)
- Fuel injector replacement: $330–$630 (warranty)
- Software update: $0 (warranty)
Take It to Your Dealer
On a 2024 model under warranty, the clear best option is a dealer visit. Volvo technicians have VIDA diagnostic access, the latest TSB information, and can perform warranty repairs. Don't risk complicating a warranty claim with extensive DIY troubleshooting.
Safe to Drive?
Yes, for the trip to the dealer. Avoid spirited driving and stay off boost as much as practical. The S60's catalytic converter costs $1,800–$3,000 to replace, and rich running under boost generates the most converter stress. A prompt warranty repair prevents any secondary damage.