At how many kilometers does a Scirocco need an overhaul?
1 Answers
It depends on the vehicle condition. Domestic vehicles generally require an overhaul after about 100,000 kilometers, while imported vehicles need it after over 100,000 kilometers. There are three scenarios for determining when an engine needs overhaul: 1. Severe oil consumption with blue smoke emission but no oil leakage; or serious black smoke emission from the engine. In this case, measure cylinder pressure using a cylinder pressure gauge. If the pressure is below normal value, an overhaul is necessary. 2. Abnormal engine noises, which require disassembly for confirmation. When abnormal noises are detected, use an engine noise detector for measurement. Reasons for overhaul: After reaching certain years or mileage, severe wear and aging of internal engine components lead to significant power performance decline. At this stage, replacing valves, pistons, cylinder liners, cylinder boring, and crankshaft grinding becomes essential. Post-overhaul, engine performance can recover over 90% of its original state.