What is the solution for Peugeot 408 1.8 burning engine oil?
3 Answers
Peugeot 408 1.8 burning engine oil specific solutions are as follows: 1. Parts aspect: Excessive wear of engine-related parts will lead to excessive clearance, causing excessive oil to splash onto the cylinder wall, far exceeding the oil ring's scraping ability; excessive clearance of the crankshaft bearing will cause oil to leak from one or more pressure-lubricated bearings; replacing these main parts can solve the problem. 2. Engine problem: Burning engine oil caused by improper assembly or failure of engine-related parts. Main parts: valve oil seal falling off or aging; replacing the valve oil seal can solve the problem. 3. Replacement parts: Poor quality of car engine repair and improper selection of parts are one of the reasons for burning engine oil. Replace parts or switch to high-quality engine oil.
My experience with the Peugeot 408 oil burning issue is that the first step is to check the oil consumption. If it exceeds 0.5 liters per 1,000 kilometers, there may be a problem. A common cause is worn or stuck piston rings, which allow oil to enter the combustion chamber. When I noticed blue smoke from the exhaust pipe while driving, I suspected it was a ring issue. Steps to address it: first, try simple solutions like switching to a higher viscosity oil or adding a seal repair additive. If that doesn’t work, take it to a professional repair shop to disassemble the engine and replace the piston rings or valve stem seals. Repair costs range from a few hundred to several thousand, depending on the extent of the damage. Also, don’t overlook aging valve guide seals, which can also cause oil leaks. Using high-quality oil during regular maintenance can effectively prevent this issue and extend the engine’s lifespan.
As an experienced car repair specialist, I diagnose Peugeot 408's oil burning issues by starting with systematic causes. In most cases, it's caused by piston ring wear or aging valve stem seals leading to oil leakage. Symptoms include continuous blue smoke from the exhaust pipe and rapid oil consumption. The first step is to check the turbocharger for signs of oil leakage—this is particularly common in 1.8L engines. The repair process involves using a borescope to inspect cylinder wall wear before deciding whether parts need replacement. For piston ring issues, an engine overhaul with new rings is recommended; replacing aging valve stem seals is relatively simpler. I also suggest checking the ignition system for faults, as this affects combustion efficiency, but the focus remains on sealing issues. The entire repair typically costs between 2,000 to 5,000 yuan. Preventive measures like regular oil changes and avoiding frequent hard acceleration can save significant trouble. Always use certified parts and test oil pressure post-repair to ensure long-term stability.
