QUALITY BMW AUTO SERVICE IN WALTHAM

OIL LEAKS IN VALVE COVER GASKETS AND OIL FILTER HOUSING GASKET

This is the most common malfunction of BMWs that have been on the road between 5 and 10 years. Both the gaskets are made up of rubber materials that, over time, get exposed to heat from the engine. This causes the material to degrade and form cracks. The indicators of this issue include the smell of burning oil, visible smoke under the hood, an oil stain on the floor around the car, and a low oil level warning. This causes overheating and component corrosion in the BMW engine near Waltham.

At RayTeam Automotive, our team identifies malfunctions by conducting leak tests and pinpointing the origin of the leak. Then the damaged gasket is replaced with a new OEM-made one. After the repairs, the oil level is also restored, allowing your vehicle to run smoothly near Boston.

ELECTRIC WATER PUMP AND THERMOSTAT MALFUNCTION

The electric water pump and thermostat are two crucial components of the cooling system that can fail due to valve damage and pump component damage, respectively. Their damage disrupts the engine’s essential cooling system, resulting in overheating and activation of limp mode in the vehicle. As a result, the vehicle faces heat damage, friction, component damage, and carbon buildup. In extreme cases, it seizes the engine near Waltham.

At our auto service shop, the vehicle is scanned using a BMW-specific diagnostic tool, such as ISTA/D, to identify the damaged components. On top of that, component-specific testing and visual inspection are conducted for further inspection. The repair process involves draining the coolant, meticulously disassembling the cooling system, replacing damaged components with new, OEM-made parts, and reassembling the cooling system. After the repairs are done, the coolant is refilled to appropriate levels, the system is bled to remove air bubbles in the coolant line, and the error codes are cleaned at RayTeam Automotive around Waltham.

CARBON BUILDUP IN INTAKE VALVES

Modern BMWs feature a direct-injection engine, where fuel is directly pumped into the cylinder instead of being drawn through the intake valve. This makes the engine prone to carbon buildup from condensed and burnt oil at the intake valve. The malfunction causes a disruption of proper airflow into the engine, hampers combustion, and ultimately decreases the engine’s efficiency and fuel economy.

Borescope inspection at our auto repair shop, RayTeam Automotive, reveals the underlying causes of the malfunction. The repair process starts with disassembling the engine and rotating the camshaft. Then, through ‘walnut blasting’, the carbon is removed. The camshaft is re-rotated and the engine is assembled, completing the repair in Waltham.