So where on your car did you wind up placing the DBW box? Have a picture?
What year car is yours?
KTBD
What year car is yours?
KTBD
DBW Install
kissthebricksdad
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So where on your car did you wind up placing the DBW box? Have a picture?
What year car is yours?
KTBD
What year car is yours?
KTBD
Joined
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1,023 Posts
I'm willing to share some of my lessons learned about this project with anyone who has already purchased same but has not yet installed in a QP5, especially those made 2009 and later. If interested PM me.
KTBD
KTBD
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At passenger's bottom floor. The switch (with custom extension cable) went into the cd changer's glove box under the column (I have removed the useless CD changer)
Sorry I didn't take any photos. :frown2:
June/2008
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I documented the steps I took as I followed the FD instructions for installing a DBW into a 2009 QP5. Wherever the FD instructions were merely suggestive, I added details in case I ever have to do this install again in a different QP5. The bulk of the time taken on this initial install was spent mentally planning the next few steps, covering potential contingencies as well as the straight forward parts.
Driving Impressions - The chassis is much more responsive to the engine. I feel way more pull even with small throttle increases than before. Upshifts happen quicker, on average. The adaptive design of the ZF gearbox can modify that behavior (make shifts more leisurely) if driving style is moderate rather than aggressive. Automatic downshifts when braking seem more noticeable (not a bad thing), whether in MANUAL or AUTO mode. I always use SPORT. Driven the same way as before the install, the gas mileage for suburban driving is the same or half a mpg better, 12.9 instead of 12.4 (that was a surprise). Driven aggressively drops suburban gas mileage to 11.7. After living with this mod for a couple of months now, I'm willing to add my vote to others who reported that if one had to make only one mod to a QP5, this should be it.
Driving Impressions - The chassis is much more responsive to the engine. I feel way more pull even with small throttle increases than before. Upshifts happen quicker, on average. The adaptive design of the ZF gearbox can modify that behavior (make shifts more leisurely) if driving style is moderate rather than aggressive. Automatic downshifts when braking seem more noticeable (not a bad thing), whether in MANUAL or AUTO mode. I always use SPORT. Driven the same way as before the install, the gas mileage for suburban driving is the same or half a mpg better, 12.9 instead of 12.4 (that was a surprise). Driven aggressively drops suburban gas mileage to 11.7. After living with this mod for a couple of months now, I'm willing to add my vote to others who reported that if one had to make only one mod to a QP5, this should be it.
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Mine (2009) doesn't have that much room there without being very obvious. Glad it worked for you.
KTBD
KTBD
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I totally agree.
I was very disappointed from the accelerator lag. I couldn't believe it. If I didn't knew, I would be thinking that there was some serious problem with the car.
Simply unacceptable to a car with V8 and 400bhp engine.
Some people mention: this is a luxurious gentlemen's car, or this is a businessman's car, or this car was made for family transportation so no need for instant acceleration etc are bullshit to me. BMW M5 has the same purpose but....
I'm wondering if the new QP 6 has the same lag....I doubt.
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It feels "different" for a turbocharged engine. Not near-flat spot, like on the early generation turbos, but not as throttle responsive as a QP5 with a DBW. FWIW, the last stock 7 series I owned had about the same amount of throttle lag as a stock QP5. I drove an M6, where all the throttle lag was gone, but it felt to me more like a brute force track machine than anything else. Not nearly as comprehensive as my requirements list. That's why I went with a QP5.
KTBD
KTBD
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