"LIFETIME"
ISN'T AS LONG AS YOU THINK
August
2001
By Mike Perkins
BMW CCA/Houston Chapter Technical Advisor
Owner - Bavarian Machine Specialties |
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After 229,000 miles and 16 years of service and repair work,
the Alpine white 5 series was going to be sold to its second
owner. I received a call from the lady who owned it informing
me of the proceedings so I would know who the new owner was
and could therefore continue maintaining the car for him.
She also started asking me questions about the purchase of
a new BMW. This is not an uncommon situation, one that I see
in my business quite often; long term ownership followed by
a repeat purchase of another BMW. The questions she was asking
me, however, gave me pause for thought concerning the contrast
in ownership from the BMW she just sold to the 2001 model
she was about to purchase. It is important to understand that
this women was not selling the car because it was run down
or unreliable. She had made a concerted effort to follow my
guidelines for maintenance and repairs for at least 14 of
those 16 years (the first two years were spent at the dealer).
She was still attached to the car but in her words "it
was time". People want new things now and then, but she
had owned the car in the classic sense; you pay good money
for a well engineered car, you maintain it and it outlasts
3 other cars. By today's standards that might seem old fashioned,
but in the real world if you run the numbers, it still makes
the most economic sense. It's not easy, however. It requires
planning, patience, understanding, and yes, sometimes being
inconvenienced.
This brings us to the reason for this article and what I believe
is by contrast BMW's single most important idea behind ownership
of a new BMW.
For
years, BMW was maligned for building a car that was claimed
to be high maintenance. Well, rightfully or not, the new regime
took it to heart and has turned 180 degrees. The idea to extend
the service requirements to the point that you take the car
in as little as possible is a departure from the normal BMW
philosophy. A trouble-free, no hassle, pleasant ownership
experience for the first several years is what they are after
here. The question is: At what price? Although car advertisers,
not just BMW, would like you to believe cars should be reliable
like an appliance, it just isn't so! Strap your computerized
refrigerator in the bed of a pickup and drive around on Houston
roads for a month in our wonderful climate conditions and
then tell me it still works. Lets face it, if someone tells
you long enough that the car you're thinking of buying doesn't
need anything done to it for 100,000 miles, sooner or later
you are going to buy into it. The low or no maintenance angle
sells cars, it's the latest truth in advertising.
The
lady with the 5 series could not fathom the idea that her
salesperson said the new car would not need service for "at
least 20,000 to 30,000 miles". When she called me with
this claim my answer to her was "that depends".
Without hesitation I told her it depended on how long she
was planning on owning the car. If you follow what BMW would
like you to do and trade in your car every 3-4 years, then
my advice was to do exactly what BMW recommends. At that point
the car will become someone else's problem. On the other hand,
I knew her and I knew she would keep it for at least 10 years.
This woman is no different than a lot of you reading this
article. She will need a more accelerated schedule of maintenance,
regardless of the service interval system.
It
is obvious that the service recommendations on today's BMWs
are written to appeal to the broader masses of people who
do look at cars as appliances and buy into the idea that we
live in a throw-away society.
These
are the first time BMW buyers who have owned Fords, Toyotas,
etc. As BMW expands their market grip, they have to compete
on the same level of mindless ownership to survive. How you
buy a $60,000 car and consider it a throw away after 4 years
is beyond me, but I guess everything is relative. Make no
mistake - this new philosophy is about selling cars to a broader
range of people who are not maintaining cars for the long
haul. Anyone who expects a real return from a highly engineered,
highly sensitive car, in fact, the best the automotive world
has to offer, should understand the difference.
The
idea of a break-in service is long gone. The reality that
the basic fluid changes and critical retorque are no longer
important should be suspect to everyone. It is interesting
to note that the new M5 must receive a break-in service. Are
all the other BMWs not deserving of this same service? Ok,
I buy the factory's position that there are no break-in oils
used as in the past and that the engine is run-in prior to
installation but no matter how fantastic the BMW synthetic
oil is (once made by Valvoline - now made by Castrol) no one
will convince me that metal parts don't initially wear. Just
building an engine has its share of grit that will be left
in the engine and along with microscopic wear particles will
cause premature wear. Case in point: I have seen an unusually
high amount of problems with scoring on camshafts on new M3's
- several with under 20,000 miles on the clock. Where did
this grit come from and what happens if you don't get it out?
You guessed it - rattling timing chains, loud lifters, and
low oil pressures. What used to be a guaranteed 250,000 mile
engine has a hard time making 100,000 miles. The advice I
give is to change your oil with a synthetic brand in one-half
of the prescribed service intervals. Do not change from one
brand of oil to another, stay with one kind. (The oil that
comes in the car is very good at a reasonable price.)
Additionally,
the idea that standard transmissions no longer ever need fluid
changes is truly alarming. I have no doubt that the "lifetime"
fluid will last for the lifetime of the transmission but what
will that be, half the life of a transmission that receives
regular servicing or just long enough to put the car out of
warranty. Pull the plug on any transmission or differential
after just 2000 miles and take a hard look at the fluid in
the pan with a light. You will see lots of pretty shimmering
particles (brass, steel, etc.). These certainly do not add
to the life of the bearings.
Automatic transmissions are the same story but with a more
expensive downside. The automatic transmissions on most BMW's
now also have a "lifetime fluid and never need servicing".
This is either a great way to sell transmissions or lose the
repeat customers who want to own these cars for the long term.
Case in point: 94 740il with 78,000 miles came into the shop
with a complaint of shifting problems. Now bear in mind this
is a 5HP30 transmission which is definitely the most reliable
unit that ZF has ever sold to BMW for use. However, the nature
of an automatic is to operate under friction (i.e. fiber clutch
packs) which will create heat and degrade fluid lubricating
properties. As moving parts wear, they create enough aluminum
and fiber powder to gunk up valve bodies until the electronic
shift valves no longer function precisely as intended. This
was the case of the 740il. The transmissions we work on with
over 60,000 miles having no past service work are for the
most part filthy and in need of basic flushing and filter
changes. However, in addition, these transmissions also have
a nasty little problem with plastic check balls that shrink
and deform due to heat and pressure. When this happens it
will cause all kinds of shifting abnormalities or worse. Don't
tell me these transmissions don't need servicing or I'll be
telling you "well, you have just reached the life of
your transmission; that will be $4,500."
Power
steering systems are regularly neglected, especially since
BMW makes no provision for routine service. Take the top off
any two year old M3 power steering reservoir and instead of
nice red ATF (Dextron III) you will see burnt brown fluid.
By the 3rd year it will have a grayish tinge to it from all
the aluminum powder. By the 4th and 5th years you will develop
an occasional cavitation sound from the pump because the filter
is clogged. This lack of maintenance could also contribute
to a steering rack leak from a side seal or at the very least,
worn internal rack bushings.
Coolant
and hydraulic changes have also been pushed back which
makes no sense given the fact that they are such cheap
insurance. Brake fluid is hygroscopic meaning that it readily
absorbs moisture when exposed to air. The system does breath
through the reservoir cap. Moisture lowers the boiling
point of the fluid and can cause brake fade. It has been
estimated that in Houston, two year old brake fluid will
contain anywhere from 4% to 8% water. This small amount
will lower the boiling point by more than 25% to 30% which
could cause compromised stopping power when it is needed
most. In addition, moisture in the system can cause corrosion
in the bores of system components, eventually leading to
premature seal wear (i.e. leaking calipers, master cylinders,
etc). Most of the ABS related failures that I have encountered
can be traced to moisture contamination which leads to
corrosion that can make the ABS valves stick. This usually
requires expensive repairs that could have been avoided
by periodic flushing. Houston has more moisture in the
atmosphere than do most places in the country. Because
of this, I recommend brake fluid be tested for moisture
content at least once a year. Flushing may be wise to do
on a yearly basis, especially if the car is exposed to
severe driving conditions (i.e. constant freeway stop and
go, or track events/auto-crossing).
I
also see cars at 40,000 plus miles that according to the service
interval system are now due for an Inspection II. Obviously
the air and fuel filters are changed as part of this service.
However, by this time the air filter is so filthy you can
literally bang a small pile of sand and grit out of it. Air
and fuel filters are not worth the risk of leaving on the
car for this kind of mileage.
Someone
on the other side of this might say I'm cynical, maybe because
the low maintenance cars mean I will have less to work on.
Quite the opposite is true and to this I say: Go ahead and
follow the factory maintenance schedule to the letter because
the less you do the more the car will eventually break. I
am seeing more work, especially large jobs like transmissions
and engines than ever before because of the lack of preventative
maintenance. My advice is own a car like you're going to have
it for a long time. If you're looking at buying a car just
off lease, check it out carefully. Have every used car checked
out even if it is a "certified" car. Remember, "maintained
at the dealer" doesn't necessarily mean what it used
to. If you think oil changes at the nearest quick lube shop
is maintaining your car, think again. Well intentioned but
untrained oil jockeys will guarantee you a false sense of
security.
Do
not misunderstand my aversion for this lack of reasonable
servicing. The technology that has enabled some of this is
wonderful. Cars are definitely more reliable and with the
advent of 4th and 5th generation electronics BMW's are easier
to repair and infinitely safer to drive. Self-adaptive, self-
learning engine management systems with multi-plexing and
digital feeds are a good thing. Technology has its rewards
but we have to be smart about the reality of what we expect
from our BMW's. It is a shame when BMW engineers a car to
last 300,000 miles and then puts it on a service program that
gives one the impression they ar only concerned about the
warranty period. It is up to you to protect your investment
because the alternative is too expensive. As for the lady,
she has an appointment for a 1200 mile break-in service next
month.
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