TPW MIA, but OCD-PSI = AOK - 2009 BMW 750i Long-Term Road Test
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2009 BMW 7 Series Long Term Road Test

2009 BMW 750i: TPW MIA, but OCD-PSI = AOK

June 05, 2009

BMW 750 Tire Pressure.jpg

With Scott hogging all the seat time in the Hyundai Genesis I was forced into the BMW 750i recently. But I'm used to compromising my lifestyle when circumstances require it, so hold off on any cards or letters of concern.

Some (including Scott) have commented on the 750 feeling less sublime than its pricetag would suggest. And while no tire pressure warning lights have appeared in the gauge cluster I took it upon myself to check air levels on a cool morning before setting off. Truth be told, I'm a bit of stickler for tire pressure, and pretty much assume its off until I've checked it myself.

Surprise-surprise, every tire was low by 2-3 pounds (factory calls for 32 psi). This isn't enough to set off any warning lights, but it can impact everything from ride quality to steering feel (especially if your PSI-OCD, like me).

I actually thought the car felt great before adjusting the tire pressure, but I feel better knowing they're spot on now. About the only thing that annoys me on the 7 is the need to constantly upgrade its throttle setting to "Sport" every time I start it. And the variable steering often has me "over-turning" at low speeds as the steering ratio ramps up.

Otherwise I love this car. But I'm taking the Genesis this weekend, so maybe I'll agree with Mr. Oldham by Monday.

Karl Brauer, Edmunds.com Editor in Chief @ 9,764 miles


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