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sprinkles08
sprinkles08, ASE Certified Technician
Category: UK Car
Satisfied Customers: 21602
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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We would like to find out, we have a mercedes Vito 115 with

Customer Question

Good day
We would like to find out , we have a mercedes Vito 115 with a 646 engine and it is smoking, pushes oil up the dipstick. Is it advisable to have it reconditioned or not. If yes where can we have it reconditioned.
Submitted: 5 months ago.
Category: UK Car
Expert:  sprinkles08 replied 5 months ago.

Hello and welcome to JustAnswer!

It usually isn't cost effective to have an engine rebuilt versus replacing it, especially if machine shop work is necessary. Your excessive blowby is being caused by piston ring wear at the least, cylinder wall issues are likely given the severity of the problem. Damage to the cylinder walls would require the stripped engine block to be machined and either cylinder liners installed or oversized pistons installed, either of which will be costly. Add to that the cost of the other parts and the high amount of labor involved, and it would come out around the same price as it would to just replace the engine with a remanufactured one, or a reman may be cheaper. If you had it rebuilt then the parts would usually carry something like a one year/12,000 mile warranty, where the warranty on a reman engine would usually be 3-5 years, and could be as much as 100,000 or even unlimited mileage. Overhauling engines is uncommon these days due to the high cost of labor and the lower cost of replacement engines.