Parts for your 2006 Mitsubishi Lancer-Oil seals

2006 Mitsubishi Lancer oil-seals — what they do and when to sort them out

Technical sources confirm oil-seals are used on the 2006 Mitsubishi Lancer. The Mitsubishi Motors Lancer Workshop Manual for CS/CH series (MY2004–2007) specifies crankshaft front and rear oil seals, camshaft seals, and manual/automatic transaxle input and driveshaft/output shaft oil seals. The Mitsubishi ASA electronic parts catalogue also lists these seals across the 4-cylinder engines and transmissions fitted to this model year. So oil-seals are absolutely relevant on a 2006 Lancer.

On this Lancer, oil-seals do the quiet hard work of keeping engine and gearbox lubricants where they belong. They sit around rotating shafts — such as the crankshaft and camshaft at the front of the engine, and the rear main where the engine meets the gearbox — plus the transaxle’s input and driveshaft/output shafts. A healthy seal prevents drips on the driveway, stops oil misting the timing area, and protects the timing belt from contamination.

There’s no strict replacement interval for oil-seals, but they should be inspected at every service. It’s smart preventative maintenance to replace the front crank and camshaft seals when the timing belt is off, typically around 100,000 km or 5 years (check the local schedule for the specific engine). If there’s weeping at the gearbox drive-shaft seals, plan a reseal when servicing CV shafts or doing clutch/auto service work.

• Common signs they’re due: oily residue at the timing cover, fresh drips at the bellhousing (rear main), oil on the lower engine mount area, burning oil smell, or gearbox oil mist near the driveshafts.
• Risks of ignoring leaks: degraded timing belt, slipping clutch from a leaking rear main on manuals, low oil level, and a messy underbody.

When replacing, a proper seal puller/driver avoids scuffing housings. Lightly oil the lip, check crank/cam surfaces for grooves, and use OEM-quality (or equivalent Viton) seals. After any seal work, top up the correct engine oil or trans fluid, clean the area, and re-check after a short drive. If driveshafts are removed, refit carefully to protect the new lip and confirm no play in CV joints. For owners who like a tidy, reliable Lancer, bundling seals with timing belt, clutch, or CV work saves labour and future headaches.

Popular questions about 2006 Mitsubishi Lancer oil-seals

Where are the key oil-seals on a 2006 Lancer?
They’re at the crankshaft front (behind the timing cover), rear main (between engine and gearbox), and the camshaft ends. The manual or auto transaxle also has input and driveshaft/output shaft oil-seals. These seals keep engine and transmission lubricants contained around rotating shafts.

Do oil-seals have a set replacement interval?
Not a fixed one. They’re inspected during routine servicing and replaced if leaking. Many owners opt to change the front crank and cam seals proactively during the timing belt service to avoid future leaks that could contaminate the belt.

Is it safe to keep driving with a small oil-seal leak?
Short trips might be okay, but it’s not ideal. A rear main leak can contaminate a manual clutch, and any engine oil leak risks low oil level and belt damage if it reaches the timing area. Best to book it in and sort the seal before it turns into a bigger bill.