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Year or engine (M103/M104) at least?
Head gasket issues existed with both engine configurations, but I believe the M103 configuration had valve guide issues.
Most techs will have the head and valves reconditioned while replacing the gasket...makes sense to get as much done while the engine is cracked open...cheaper too!
Don't forget to have the EGR tube cleaned out...far easier to access with everything out as it resides behind the motor.
My indie balked at doing the timing chain even at 160K for me. Said unless I was really poor with oil change intervals, they should be good for at least 200K.
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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car
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