Some of the best upgrades you can make to maximize the fuel economy of your BMW include: replacing the spark plugs, keeping correct tire pressures, and replacing old oxygen sensors. The oxygen sensors before the catalytic converters – located in the exhaust manifolds – play a large part in controlling the fuel mixture for the engine. When they have high mileage or have failed they no longer send a clear signal to the engine’s computer, at which point the computer defaults to a base line map designed to protect the engine. This default map is a rich fuel mixture (extra fuel) which causes sluggish performance and decreased fuel economy.
Replacing the spark plugs and coil packs on your BMW is one of the easiest and most affordable ways to increase performance and enhance fuel economy. This job can be completed with just a few basic hand tools and an hour of your time. Factory Bosch ignition coil packs cost about $29 each and NGK platinum factory spec plugs cost about $7 each. At only $36 per cylinder, that puts a full tune up at $216 for a six cylinder and $288 for an 8 cylinder.
If you drive an old BMW like I do (15 years old to be exact), it’s likely that your factory BMW BBS wheels are in poor shape. Rarely do the original wheels survive a decade or more of daily driving and curb abuse. If you’re lucky, you may have a perfect condition unused spare in the trunk- which is where my idea came from.
Auto detailing has been a hobby of mine for the last 13 years, since purchasing my first car in 2003. That car was a Zinnoberrot E30 sedan, which was a true diamond in the rough. My dad convinced me that the dry, faded looking paint was nothing to be concerned about. “It will come right back with polish”, he said. After discovering how paint polish applied by hand brought the paint back to a rich glossy shine, I was hooked on that process of transformation.
Nothing connects us to the car we drive as much as the steering wheel and shift knob. Over time, the leather on these parts will become worn down and unpleasant to touch. One of the easiest and most enjoyable upgrades for your BMW is to install a new shift knob. Here’s how to remove and install a new factory shift knob: