Why is it said that Roewe and MG cars are difficult to repair?
1 Answers
The Roewe engine is not impossible to repair, nor is it unrepairable, but it places higher demands on the basic skills of maintenance technicians, and its repair standards are relatively stringent. Combined with its unreasonable design, many mechanics tend to avoid working on it. The reasons for reluctance to repair are as follows: 1. Overly long cylinder head screws: It's worth noting that the cylinder head screws of engines from other automakers are generally around 15~20 cm, while Roewe's cylinder head screws are at least 30 cm or longer—a standard chopstick is only about 25 cm long. Not only are they long, but they are also thin and extend deep into the oil pan, connecting to the crankshaft bearings. If the torque during installation is too low, the cylinder gasket is prone to leaking water or oil; if the torque is too high, the screws are likely to break (especially when using old, unreplaced cylinder head screws that have already suffered metal fatigue). Moreover, even in a never-before-repaired original engine, the cylinder head screws are highly prone to breaking during disassembly. 2. Water channels located near the intake manifold: The distance between these water channels and the intake passages is no more than 2 mm, and only rubber seals are used for isolation. The thin gap, combined with rubber seals susceptible to temperature changes, inevitably leads to coolant seeping into the intake passages over prolonged use. This coolant then flows into the engine through the intake valves, causing deformation and bending of the connecting rods in cylinders one and four. 3. Use of wet cylinder liners: The engine employs wet cylinder liners without sealing rings, making it highly prone to internal coolant leakage. This explains why some Roewe vehicles suffer from the common issue of "burning coolant"—the wet liners are easily corroded, allowing coolant to seep through the cylinder walls and directly participate in combustion.
