This Volvo with a 2.4-litre diesel engine arrived with a loss of power. The EGR system had previously been modified, and diagnostics found heavy deposits in the intake manifold and EGR passages. The boost pressure sensor was also checked. It was so contaminated that a new sensor was installed instead of cleaning the old one.

The intake manifold and EGR cooler were removed during the repair. The passages, EGR assembly and cooler were cleaned; new seals and coolant were planned for reassembly. EGR operation was restored in the ECU software, and the video also mentions a Stage 1 calibration.

A road test was carried out after reassembly. The car was described as driving well with its power delivery restored. No dynamometer test or numerical power increase is shown, so the reported improvement is based on the road test rather than dyno data.