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N52s are a dime a dozen and decently tough little engines. If it were my car, I would send it. If it runs good with no symptoms it would seem a waste to toss the engine and tearing into a perfectly good running engine has its own risks. You don’t have turbos to potentially contaminate it something catastrophic happens so IMO set aside a little for a rainy day and keep driving it. Good chance it’ll last as long as the rest of the car.
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