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Eric, Automotive Repair Shop Manager
Category: Mercedes
Satisfied Customers: 32591
Experience:  20+ yrs. experience as repair shop manager and technician.
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I am thinking about purchasing a 2006 E 350 with 163,000

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I am thinking about purchasing a 2006 E 350 with 163,000 miles . The car runs very good but I had an AAA authorized shop run a Pre Purchase Inspection on the car. They said that there was evidence of engine oil in the coolant. They did not offer any suggestions for correction. Is this a n expensive fix and should I move on to another car?
JA: When was your last oil change?
Customer: 3,000 miles ago but the car has been sitting in the driveway for the past two years and not driven due to the death of the previous owner.
JA: What is the model of your '06 Mercedes?
Customer: E 350 sedan
JA: Are you fixing your Sedan yourself? What have you tried so far?
Customer: No I am not qualified to fix anything
JA: Anything else you want the mechanic to know before I connect you?
Customer: yes, there was also a fault code which P2015 which came up when the did the diagnostic. Is this expensive to fix.? There are no check engine lights or any other warning lights except a notice that the schedule C maintenance is due.


Possible causes of oil in the coolant are leaking headgasket, leaking intake manifold gasket or oil cooler.

If a headgasket, you are looking at around $3500 parts and labor

If the intake manifold, around $1200 parts and labor

If the oil cooler, around $400 parts and labor.

Of the 3, the headgasket is most common.

For this, I would suggest paying $100 for a block test to be performed. This tests for combustion gases in the coolant. IF positive for combustion gases, it is the headgasket and I would walk away from the purchase

P2015 is for the intake manifold runner, which means replacing the intake manifold at around $1600 parts and labor.

Personally, with these issues I would walk away from the deal.

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