A Look Back On The People And The Service of Year 2010
Giving Back To The Community – Our Volvo Giveaway To A Maine Family In Need – Done Each Thanksgiving
If you own a 2007 or older BMW, chances are you’re going to hear the term “DISA Valve” at some point in your car’s life. The BMW Differentiated Intake System, known as DISA (from the german “DIfferenzierte Sauganlage”, means differential air intake), optimizes the engine’s running under partial and full load as it adjusts the intake manifold runner length to improve engine performance.
The DISA valve is located in the inlet plenum chamber and controls the variable length intake manifold giving better torque at low revs by closing, keeping the intake runner long. After higher engine speeds, it opens up […]
The faces and folks who have made our progress possible.
Tech Tip – Headlights – We’ve found it best practice that when replacing a failed headlight bulb, to replace both at the same time. Bulbs are typically of the same age and with today’s “Daytime Running Lights” most headlights are on anytime the engine is running, so they wear out much quicker. Replacing both bulbs at the same time will often save you from a repeat visit a short time later when the bulb on the other side of the car fails. We’ve found this especially true of the “H-7” bulbs used in the majority of Audi, BMW, Mini, Mercedes, […]
What’s a Vanos? – Vanos is BMW’s name for its engine variable valve timing unit. Variable valve timing is a way of modifying the engine intake and/or exhaust valve opening/closing timing dynamically to provide improved engine performance.
What are the symptoms of a failing Vanos? Overall loss of torque and power, particularly in the lower RPM range, < 3k. Bogging then surging at 3k RPM. Uneven power distribution and RPM transition. Engine hesitations in the lower RPM range, < 3k. Louder idle and intermittent idle RPM hiccups. Difficult takeoffs. Loss of power and bogging when AC on. Increased fuel consumption. Double Vanos cars with the […]
There is a trend with many manufacturers to use so called “Lifetime” transmission fluids in their new cars. Audi, BMW and Mercedes have been doing this for years, Volvo more recently.The real question is what is a “lifetime”? If the lifetime of the car is the reference point, most owners will be sorely disappointed, for it seems to us that almost all of the fluids need service between 80-100K miles, far shorter than the lifetime of most European cars. While fluids and lubricants have doubtlessly improved over time, we suspect that the real reason for these “lifetime” fluids is the extended service […]
Where have we seen this one before? Another shop had done a timing chain replacement on this car about 18 months ago, but it appears that not everything may not have been done up to snuff. On disassembly the technician also found a defective/seized engine vacuum pump, which caused the chain to bunch up, and break the upper tensioner guide. A part of the broken guide fell down into the front of the engine, getting caught between the crankshaft sprocket and timing chain, locking up the engine, knocking the camshaft timing out of order, and leading to bent engine valves. […]