Despite near-flawless operation over the past few months, I've noticed odd low-speed behavior in our X3 xDrive28i. While accelerating gently from rest, like on a residential street littered with stop signs, the X3 pauses and then slowly starts moving forward. Then you feel the transmission kick down and, after a jerk, you finally accelerate at a normal pace. It never feels like there's a one-to-one relationship between the pressure you apply on the throttle and what the X3 does. Annoyances are twofold: One, you will spill coffee--whether in the cup holder, on the carpet, leather, or your shirt, something's getting stained. Two, the hesitation between when you ask for throttle and when you actually start moving can confuse other motorists. At stop signs, other drivers have mistaken it for me giving the go ahead, and so when they start driving into the intersection, the delay ends and the X3 zooms straight at them.I drove over early the next morning to pick up the X3. The official prognosis from the shop foreman contained no faults, deeming that the vehicle is "operating as designed," a nice little phrase that doesn't say, "Everything is working fine." The throttle delay/surge persists. We'll be following up in the coming months, doing testing of our own in hopes of finding out what's causing this wart on an otherwise splendid package.
Showing posts with label xDrive28i. Show all posts
Showing posts with label xDrive28i. Show all posts
Tuesday, 18 October 2011
Long Term Update 3: 2011 BMW X3 xDrive28i
Despite near-flawless operation over the past few months, I've noticed odd low-speed behavior in our X3 xDrive28i. While accelerating gently from rest, like on a residential street littered with stop signs, the X3 pauses and then slowly starts moving forward. Then you feel the transmission kick down and, after a jerk, you finally accelerate at a normal pace. It never feels like there's a one-to-one relationship between the pressure you apply on the throttle and what the X3 does. Annoyances are twofold: One, you will spill coffee--whether in the cup holder, on the carpet, leather, or your shirt, something's getting stained. Two, the hesitation between when you ask for throttle and when you actually start moving can confuse other motorists. At stop signs, other drivers have mistaken it for me giving the go ahead, and so when they start driving into the intersection, the delay ends and the X3 zooms straight at them.I drove over early the next morning to pick up the X3. The official prognosis from the shop foreman contained no faults, deeming that the vehicle is "operating as designed," a nice little phrase that doesn't say, "Everything is working fine." The throttle delay/surge persists. We'll be following up in the coming months, doing testing of our own in hopes of finding out what's causing this wart on an otherwise splendid package.
Saturday, 23 April 2011
First Drive: 2012 BMW X1 xDrive28i
This looks familiar, doesn't it? We drove a 2011 BMW X1 about a year and a half ago, and if you're looking for the differences, you're not going to find them in the pictures. But this really is a different vehicle. Less than two years isn't nearly long enough on the market to spur a mid-cycle facelift, so the changes to the 2012 X1 aren't readily apparent - until you step on the gas. The updates are under the hood, where it matters most. But why then does the X1 have the same xDrive28i model designation? That we can't answer. Ask BMW.
What we can tell you is what's new: a 2.0-liter turbocharged inline four-cylinder engine. Last time around, the X1 was rocking a 258-horsepower 3.0-liter inline-six with 228 pound-feet of torque and nary a turbo in sight. The straight-six was a good engine, and when you wound it out, the X1 did a pretty good impression of a 3 Series wagon, which it more or less is. But then, your average driver doesn't typically wring out the engine, even if that's how BMW engines are best enjoyed. 
Conscious of this, as well as of the ever-tightening fuel economy and emissions regulations, BMW has decided to downsize. That is why the free-breathing inline-six is on its way out in favor of the new breathed-on four-banger. On paper, the advantages are many. Zero-to-60 mph acceleration actually drops by 0.7 seconds, BMW says, to just 6.1 seconds. Average fuel consumption, as measured on the European cycle, improves by 5 miles per gallon to 30 mpg average. CO2 emissions drop by 35 grams per kilometer. Get a free and easy new car price quote in minutes.
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