BMW, Mini Cooper “Lifetime Fluid”
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.
Certain late model BMWs can experience a problem with the camshaft sprocket retention bolts failing.
This is a design defect, and well know in professional BMW service circles.
You can see on the photo below, that VANOS (variable valve timing system) to intake camshaft bolts have broken and backed out, 3 of the 4 bolts are damaged and loose.
BMW said “in very rare cases the bolts holding the variable camshaft timing (Vanos) unit housing may become loose or, in extreme cases, break.” In such cases, the driver would be alerted by […]
The rear differential design has been in use in the Volvo world since the 2008 to at least the 2014 model year, so it’s something to consider if you own a vehicle in that range. We service a tremendous amount of Volvo XC70s, and have seen the problem largely on those models, but have read reports of it being an issue on the S80 as well. Now the earlier Volvos had their own set of differential or bevel gear problems, which you can read about on our blog at Volvo AOC problems.
What We Do
We mentioned that we’ve seen this problem before, and […]
Vintage Mercedes Project – Cold War Warrior
The vintage Mercedes project car is on the road tonight, Jared, one of our Service Advisors is doing the overnight road test.
Just one year before the Berlin war fell, this Mercedes rolled new out of the factory. I’m a Cold War fan, student and history buff, having grown up in that era, so this project had a special meaning to me, one of the last Mercedes to roll out when “West Germany” was still a country.
Everything is done except […]
Removing Stuck Bearing Races
Tapered roller bearings are commonly found in wheel bearings, transmission, differentials, and other automotive systems. They consist of two parts, the bearing cone with the roller bearing, and a “race”, which is the highly polished and hardened surface on which the bearing rides. The race is pressed into the part or casting and the roller bearing installed on top of it.
So let’s say you have a bearing race (transmission, wheel, differential or other) in a “blind” hole that you need to replace. By “blind” we mean you can’t […]
This 2010 Volvo XC70 came to us with about 96K miles, and a loud noise coming from the rear of the vehicle. The noise was noticeable at low and moderate speeds while driving, and sounded like a loud whine or hum depending on vehicle speed. Initially this noise sounded like a defective wheel bearing but on further exam we determined the noise was in fact coming from the rear differential, the gear system that transmits force from the transmission to the rear wheels. We’ve seen this before, both on the later model Volvo and the Land Rover LR2 vehicles, and it’s […]