Mumbo Repairs

05/06/2026

Cheap can be very expensive,

03/06/2026

Vehicle: Volkswagen Transporter

Customer Complaint:
Customer reported a flashing glow plug warning light accompanied by an intermittent engine management light. The warning lights would appear sporadically while driving.

Diagnostic Findings:
A comprehensive diagnostic assessment was carried out, including a fault code scan and live data analysis of the fuel system. During testing, irregular fuel rail pressure readings were detected, indicating a fault within the diesel fuel pressure control system.

Further investigation confirmed that the diesel pressure valve and diesel pressure sensor are malfunctioning and are providing inaccurate fuel pressure regulation and feedback to the engine control unit (ECU). This results in inconsistent fuel pressure, triggering the flashing glow plug light and intermittent engine management warning light.

Recommendation:
We recommend replacing the diesel pressure valve and diesel pressure sensor, followed by clearing fault codes and performing a road test to verify correct fuel pressure operation and ensure that no further fault codes return.

Conclusion:
The flashing glow plug light and sporadic engine management light have been traced to a faulty diesel pressure valve and diesel pressure sensor. Replacement of these components is required to restore proper fuel system operation and eliminate the warning lights.

Repairs Required:
✔ Replace diesel pressure valve
✔ Replace diesel pressure sensor
✔ Clear fault codes and reset adaptations where applicable
✔ Perform final road test and diagnostic verification after repairs are completed

03/06/2026

Mercedes GLC 400d in for interval service

03/06/2026

Golf 8 GTI IN FOR INTERVAL SERIVICE

03/06/2026

RSQ3 in for some TLC

03/06/2026

Polo GTI in for interval service

03/06/2026

Vehicle: BMW X6 M50d

Customer Complaint:
Customer reported an oil leak from the engine compartment. Oil residue was visible around the upper section of the engine and accumulating on surrounding components.

Inspection Findings:
After carrying out a thorough visual inspection and cleaning the affected area, it was determined that the engine oil leak is originating from the tappet cover (valve cover) assembly. The tappet cover gasket has deteriorated, allowing engine oil to escape and contaminate adjacent engine components.

Recommendation:
We recommend replacing the tappet cover assembly and associated seals/gaskets to rectify the oil leak. Once the replacement has been completed, the engine should be thoroughly cleaned and re-inspected to confirm that no further leaks are present.

Conclusion:
The oil leak has been traced to a faulty tappet cover assembly. Replacement of the tappet cover and sealing components is required to prevent continued oil loss, contamination of engine components, and potential damage to surrounding parts.

30/05/2026

Congratulations Mr Trevino Jansen 🎉🎊🏆

30/05/2026

Last minute tickets still up for grabs click link in bio we will be live at 12:00

30/05/2026