Quote:
DEATHERAGE - 2/28/2005 6:22 PM
Overall should my car run hotter? worse gas milage? did I void my service contract?
--Deathy
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Your car will be the same temperature, including coolant temps but your intake air temps during full boost will be higher but nothing to worry about as that time is vey minimal unless you are track racing. Your gas mileage will be worse if you have a lead foot but consider that boost is bypassed except at heavy loads like at full throttle so most of the time you are running zero boost anyway. My fuel mileage on a 50 mile, level steady state trip at 72 MPH dropped from 33.5 to 33.2 MPG after installing the pulley. Linh and I did a lot research years back with OBD2 scanners to monitor temps and other sensors, boost gauge to see when and how much boost was being applied dyno time (over 50 for my car alone) and even dragstrip time. We wouldn't have left it long on our own cars if something was fundamentally wrong. There were plenty of other products we quickly yanked from our cars after testing, some costing more than double what the pulley cost.
As for your warranty, I don't want to offer legal advice and you should certainly not take any over the internet but if it were me and I had some sort of unknown engine problem, I would return the car back to stock before bringing it in for repairs that maybe covered under warranty. Also, if you do have problems, the last thing you want to do is complain a lot on the internet until the issue is resolved. MB watches these forums, you don't want to shoot yourself in the foot. I've seen people beg forum mods to delete posts after talking to their dealer.