| Newbug.org
| Frequently Asked Questions | Technical |
| Technical |
| General |
What
engines are available for the NB?
As of 1 January
1999, the NB is available in GL and GLS trims with a 2.0L, 4-cylinder
115 horsepower gasoline engine and in GLS with a 1.9L 90 hp 4-cylinder
Turbo Direct Injection diesel engine. The top of the line GLX
trim package should include an option for a 1.8L turbocharged
150 hp 4-cylinder gas engine in the first quarter of 1999.
Although
some automotive magazines have featured customized NBs with VW's
V6 engine, there are no plans for a factory V6 New Beetle.
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Why
doesn't VW sell a NB with the V6?
A lot of
speculation has gone back and forth about why VW has decided not
to introduce a V6 NB, especially since the aftermarket tuners
have shown that the V6 will fit with minor modifications. Most
believe that there just isn't a need for a V6 NB: the 1.8T that
will be introduced soon can already be tuned to the limits of
the NB's design.
According
to Beetle Buzz,
the 1.8T is already too powerful to be sold in Germany, where
the autobahn affords more opportunity for top speed driving than
we enjoy in North America:
After conducting
high-speed tests in Germany, VW has nixed plans to offer a 1.8T-powered
Bug in Europe due to the car's lack of stability at speeds over
200 km/h. VW will instead put their VR5 engine — essentially
a VR6 with a cylinder lopped off — in the New Beetle. The VR5
produces the same 150 horses as the 1.8T but offers much smaller
increases in horsepower for the buck.
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What
are "silent recalls"?
Volkswagen
has identified a number of problems with early production New
Beetles that need to be addressed, but are not of such urgency
that they need to issue an active recall. "Silent recalls"
are performed during the scheduled warranty services, and address
a number of issues such as warping dash panels. The following
list is of silent recalls through the spring of 1999:
- BZ
vin# 3VW_B61C_WM000320 to WM0245505
- Reposition
the oil cooler hose.
- BY
vin# the same as above
- The anti
theft system could become inoperative if the vehicle is started
with the secondary non insulated key. If the alarm system becomes
inoperative the car will not start.
- BX
vin# same as above
- The wiring
for the side air bags is not fastened down correctly.
- BV
vin# WM000001 to WM021074
- Under
hot conditions the dashboard plenum panel cover material can
loosen and bubble due to the softening of the adhesive.
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Where
can I find the NB technical bulletins online?
Carousel
Motors has posted a web page with a dozen of VW's internal technical
bulletins in PDF format:
Technical
Bulletin Archive
The bulletins
cover a range of topics from lock programming and mudflap installation
to faulty glow plug relays and musty odors in the vents.
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| TDI |
Why
should I consider a TDI?
Because the
engineering of the TDI is as cool as the design of the New Beetle?
Because the idea of 50+ MPG on the highway has a certain appeal,
as does 700 miles on one tank of fuel?
Many people
carry preconceived notions about the "problems" of running
a diesel car: they are slow, difficult to start, smelly, produce
lots of black soot and smoke, that the soot coats the car with
grime, the engines are too loud, or that diesel fuel is too difficult
to find/too expensive.
Older style
diesels experienced most of these problems and were driven off
the passenger car market. By 1998, only Mercedes and VW were selling
diesel cars in the US. While US auto makers have given up on diesel
(except in their big trucks, where the turbo diesel is making
a comeback), diesel rules in the rest of the world. The new generation
of diesel engines don't have any of the problems associated with
the older engines.
The VW TDI
might only have 90 hp, but it has higher torque than the 2.0 L
gas engine. As a result, it is as quick (or quicker) to get going
from a stop. The engine is louder than the 2.0, but not as loud
as an old air-cooled VW. To me, it sounds like a 2.0 with a tuned
exhaust. The injected diesel doesn't produce the smell, smoke,
or soot of the old engines. My own TDI is yellow, and I have not
noticed any black around the area of the exhaust.
As per instructions
from VW, the TDI is to be driven just like a gas car. You don't
have to wait for the glow plug to start the car unless you are
in freezing conditions. The fuel system is heated, so with a minimum
of attention you shouldn't need to worry about the fuel gelling
in cold weather. A recent survey shows that diesel is available
at one in four gas stations, so locating diesel shouldn't be a
problem. Diesel prices do vary quite a bit-- along interstate
highways it can be cheaper than regular gas, while in-town I've
seen it cost as much as premium.
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How
should I prepare a TDI's fuel for cold weather use?
Unlike other
diesel engines, the TDI should be run (more or less) like a gasoline
engine. Although Diesel #2, AKA the recommended fuel) will gel
in freezing conditions ( +10°F), the TDI heats the fuel pump assembly
enough to allow a constant flow of fuel to the engine. Winterized
diesel has a small amount of kerosene premixed with the #2 to
prevent gelling. The winterized mix should be safe in your TDI,
although you might find the engine running rough and fuel efficiency
reduced.
The question
of how to prepare one's own fuel for freezing weather rages on
diesel engine mailing lists whenever an arctic cold front sweeps
across North America. Most people agree that gas should never
be mixed with diesel. The "old fashioned" fix was to
add a gallon or two of kerosene to tank of diesel, although some
diesel engineers claim that long-term use of high kerosene mixes
will degrade seals and gaskets. If you are concerned about your
fuel gelling, at least try to top off your tank with winterized
fuel from a truck stop that services trucks heading into cold
weather. Top off your tank if your vehicle will be sitting long
enough to get cold. A full tank of fuel will be less likely to
accumulate moisture (introduction of ice/water to the fuel system
is another cold weather problem), and full tanks help the fuel
pumps move fuel through the fuel lines.
You can also
add a diesel fuel supplement, such as Power
Service Diesel Fuel Supplement or Stanadyne. Such supplements
not only help prevent gelling, but they can fight against prevent
problems from both water content and bacterial contamination in
the fuel. Remember that your TDI does not require any supplements
to function at its best.
Winter supplements,
also known as pour-point depressants, alone will not solve all
cold weather diesel problems. According to diesel engine manufacturer
Cummins, (most) "pour
point depressants are not cure-alls as they will not reduce the
cloud point nor are they effective when added to fuel at or below
the cloud point. A survey of winter blend fuels by the Bureau
of Mines (now a part of the Energy Research and Development Administration)
revealed that a large percentage of the commercially marketed
No. 2-D diesel fuels had been treated with a pour point depressant.
Before purchasing such an additive to treat fuel, ask the fuel
supplier whether the fuel already contains an additive. If the
fuel is already treated, additional additives will not be very
effective."
If your TDI
won't start due to freezing conditions, have it towed to a heated
garage. Never use ether to try to start your TDI engine.
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| Modifications |
What chip tuning is available
for the NB? |
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Can I add
a turbo- or supercharger to my 2.0 engine? |
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How much will
a new air intake or filter system boost performance? |
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Can I
install a classic "meep meep" horn?
Vintage Hella
12 volt horns, part #113 951 113A can be purchased for $10.95
ea. from Mid-America Designs 1-800-LUV-BUGG (588-2844).
Mitch
Perry
offers these instructions for installation:
I now have
a Meep-Meep horn. It would be simple for a Shade Tree mechanic,
this was the first time I have worked on a car, since '82. I
printed the 2 previous posts I found with the digest search
engine, and with part number in hand, called NAPA. They did
not stock it, but directed me to NOPI, who specializes in import
parts. A half hour drive round trip plus $15, and I had a new/old
horn.
Al Borlen
approach: Tools required: 1-12mm socket, with 9 inch extension.
Supplies - silicon, 2-6 inch pieces of wire, with a one male
fitting, and female fitting on each. electrical tape, 67 VW
horn p/n 111-951-113-A, (got mine at NIPO auto parts)
Time -
10 minutes
If you
can get the car up on something, where you have better clearance,
this would really help.
- Remove
horns with 12 mm socket, located below front left light, in
front of wheel, accessed from bottom.
- Detach
the electrical by pushing, then pulling, and tape one connector
back out of the way (won't be used).
- Attach
both 6 inch pieces of wire to the other connector, male end,
and the female end to the new horn. (these are 1/4 (I think,
but they were the only size Home Depot carried of this type).
The male is flat, like a spatula, and the female is flat, but
the sides are curled up, so the male slides in it.)
- Silicone
all connections and the unused connector.
- Attach
new horn with 12 mm socket. (You may need to use the old bracket
from the socket horns, or get out the hammer & chisel, if your
new one came with a pre-attached nut).
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| Oil |
Should
I change my oil before 5K? Should I change it every 3K afterwards?
Few topics
engender as many heated debates among car enthusiasts as the arguments
surrounding when to change oil. The VW New Beetle manual states
that the oil should be changed at 5000 miles, then at every 10000
miles. Many US drivers are very uncomfortable with the idea of
not changing the oil every 3000 miles. As Mike Suave points out,
3K oil changes were common in the '50s, when metallurgy and oil
technology weren't nearly as advanced as today - so what have
those advances gotten us, if not longer oil change intervals?
VW has to stand behind their 10 year/100K powertrain warranty,
and they are not about to give out bad advice on how to maximize
engine life.
The oil should
not be changed before the first 5K service. VW uses a special
"break-in" oil, and it needs (at least) the 5000 miles
to properly seat the rings. In Europe, VW delays the first change
until over 10000 miles; while they briefly suggested a 7500 mile
first change in the US in the mid 1990s, the policy apparently
didn't meet the approval of the typical US consumer accustomed
to the 3K oil change ritual. A more complete account of VW's European
oil change recommendations can be found on the GTI
Club's mail archive.
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Can I change
my own oil? |
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Can I use
synthetic oil in my TDI? |
| Performance |
My friend
drove my auto NB, and now it drives differently... |
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I have the
manual transmission--should I downshift all the time? |
| Suspension |
Can you lower a NB? |
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Are aftermarket
suspension kits available? |
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Is there really a difference
between 1998 and '99 suspensions? |
| Warning
Lights |
My
"check engine light" always stays on...
AKA, the
curse of the TDI and the dread check engine light disorder. The
run of 1998 TDIs were stuck with faulty glow plug relays. The
glow plug is used to heat a cylinder for a few seconds before
the engine is cranked. Cars with the faulty relay experienced
some cold weather starting problems. It is possible that your
car will run fine, but the relay will cause the CEL to stay on.
Take the car in to have the relay replaced as soon as possible.
I've experienced
two other problems relating to the CEL. The first time it stayed
on, I didn't experience any performance problems, but the service
tech discovered that a vacuum hose was loose. The second time,
a faulty fuse in the the brake system was telling the computer
that I was driving with the brake and acceleration pedals pressed
at the same time. Although the CEL appears to have a hair trigger,
it does catch small problems before they have a chance to become
big problems.
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Why
does the "cold" light come on when I first start
the car?
You must
have skipped that part of the manual: in cold weather, the blue
"cold engine" light will stay on until the engine temperature
is warm enough for normal use. Avoid running the engine hard while
the blue light is still on.
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| Comments,
Corrections, Additions |
Please send
email to [email address removed] to make a correction,
add a question/answer to the FAQ, or to
submit a new link for the website list.
Information
provided in this Frequently Asked Questions list has been gathered
off of the newbug mailing list!A>
[Now located at topica.com]
All questions and answers are copyleft to the individual authors
noted in the text; the FAQ can be reproduced in electronic form
in whole or part for noncommercial purposes as long as it retains
a link back to this original
source and it carries this notice. The New Beetle FAQ cannot
be reproduced in whole or part for commercial use without written
consent of the FAQ organizer.
Caveat
lector. Always consult your New Beetle owner's manual and/or
your Volkswagen service representative for authoritative advice
on the care and feeding of your NB.
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