We De-mystify VW
®
Repair......Call Us for FREE Advice
R-43
AUTO REPAIRS
THEN & NOW
Like it or not, your VWs
®
are becoming more and
more electronic devices. The good news is: It has
allowed engineers to increase performance and effi-
ciency at the same time. This feat is accomplished
at a time when government emission and safety
regulations continue to challenge them.
The bad news is that the automotive service
industry has not kept up with sophistication of the
cars. Because of this, many (and I mean many!)
mechanics mis-diagnose problems. We don’t neces-
sarily mean the “Do-It-Yourselfers", but many of
the nightmares we hear about involve the
“Professionals."
So you’ve got to have a basic understanding of
how your car works to be able to evaluate your
mechanic. STANDARD WARNING!: If your
mechanic keeps suggesting the replacement of parts
and the problem is not being solved, he’s lost, and
you’re on your own, anyway!
Buy a Bentley Service Manual (we sell them for
all VWs
®
!). If you desire even more “in-depth"
information. We sell Bosch Technical Publications,
also.
Remember, Volkswagen
®
is a huge company
worldwide, and Bosch, who makes most of the
sophisticated stuff for VW
®
, is huge also. They pro-
duce EXTREMELY reliable vehicles and systems.
Usually, electrical component failures are easy to
fix, but difficult to diagnose (especially for the
inexperienced). Once you have diagnosed the failed
component, we can provide you with excellent
RECYCLED components, off cars we have taken
apart. We can solve your problem for a fraction of
dealer’s prices. On some items, we may suggest
new or even remanufactured components as avail-
ability dictates.
We will ALWAYS! save you $$ MONEY $$
IGNITION MODULES
These ignition “triggering" devices are solid state,
and, occasionally fail. If yours does, you won’t be
able to start your car. Call us with the part number
on yours (they’re usually located in the cowl area),
and we’ll get you back on the road quickly!!
RECYCLED IN STOCK $60-$80
VOLTAGE REGULATORS
The voltage regulator’s duty is to make sure the cur-
rent produced by your alternator is in the correct volt-
age range. The battery and other electronic compo-
nents must communicate in the same language.
Sometimes the contacts may break and cause the cur-
rent to flow insufficiently. Call us if you need a volt-
age regulator – we stock all types!!
(A)
REPLACE with (C)
(B)
#SN3023
. . . . . . . . . . . . . . . . . . . . . . . . .
$
29.
9 5
(C)
#SN10138
. . . . . . . . . . . . . . . . . . . . . . . .
$
29.
95
(D)
VR 6 Golf/Jetta III, Passat, all ‘92-99.5 with VR 6
Engine
#
SN17110
. . . . . . . . . . . . . . . . . . . . . . . . .
39.
9 5
(E)
4 cyl. Golf/Jetta III ‘93-99.5 with Valeo alternator,
these are for 90 amps
#
SN19996
. . . . . . . . . . . . . . . . . . . . . . . . .
39.
9 5
(F)
All new Beetle, Golf/Jetta ‘99.5-04 with Bosch
Alternator
#
SN19997
. . . . . . . . . . . . . . . . . . . . . . . . .
39.
9 5
ELECTRONIC CONTROL
MODULE
The electronic control modules (ECM), or elec-
tronic control units (ECU) are the gathering point
for electrical signals that come from a variety of
on-board sensors. These sensors detect everything
engine RPM to temperature, wheel speed, throttle
position, to electrical load, etc. You get the idea!
These control modules, engine management, and
anti-lock brakes, electronic transmissions, on-
board computers, collect information, and respond
with output in a pre-programmed manner. This
pre-programming has given the engineers very
precise control over vehicle systems. Changing
this programming (after-market performance
“CHIPS) has given the modern “Hot -rodder" a
unique way to improve the vehicle’s performance.
But, not necessarily its longevity.
If a control module is malfunctioning, it can be
a serious problem. We take the electronic compo-
nents out of good-running vehicles, and sell them
guaranteed to perform as new!
If you or your mechanic have diagnosed a faulty
unit, call us with the part number right off the part
and we’ll get you a replacement quick, and at a
great price!
TECH/SAFETY TIP
• Don’t disable any safety mechanism that may
be designed into the engine management system.
• Don’t spray injectors into open air when testing
the vehicle. Finely atomized fuel spray is highly
flammable and unhealthy to breathe.
• Don’t apply battery voltage directly to electron-
ic port injectors to test them.
• Don’t remove or attach the wiring harness plug
to the vehicle ECM with ignition on. Detach ECM
plug before electric welding on vehicle.
RELAYS
These little switching devices simply connect the
current to the accessory calling for it. By having
relays, more direct routing of current can be accom-
plished. The shorter the distance the electricidad
has to travel, the more efficient the electrical sys-
tem is. Check the part number on the relay you
need, and we’ll sell you a
ALTERNATOR BATTERY
HEADLIGHT
FUEL PUMP
IGNITION SYSTEM
HEATED
REAR WIN-
DOW
FRESH AIR FAN
4 A MPS
7 A MPS
1 0 AM PS
1 0 AM PS
1 0 AM PS
2 5
AMPS
Brains, Brains, Who’s
Got The Brains..
Tech Tip:
All
the water-cooled gas-pow-
ered VW
®
cars from ‘81-up
use a coolant-temp sensor to
tell the fuel-injection comput-
er what temperature the
engine is running at. The
sensor does this by sending
the computer a resistance
signal (in ohms) that changes
with temperature. The com-
puter then adjusts the
amount of fuel sent to the
engine based on this signal. The symp-
toms of a bad coolant temp. sensor can
be: an engine that starts hard or misses
when cold but runs fine when warm.
Another symptom is an engine that “loads
up" the spark plugs and runs rich for no
apparent reason (ignition good). You can
easily test these sensors with a simple
ohm meter. The resistance values (ohms)
are in the Bentley manual, and a new
coolant temp. sensor is relatively inexpen-
sive. You can even install it yourself. We
have them new and used.. give us a call!
(A)
Bosch
(B)
Motorola
(C)
New Bosch
Type
Type
Type
Sensor, 16V ‘86-92
#SN15519
. . . . . . . .
$
29.
95
Sensor, Water neck G/J ‘83-84
#SN37818
. . . . . . . . . . . . . . . . . . . . . . . .
39.
95
On Hose Connector Rabbit
®
‘81-84 and others
(pipe with red connector)
#SN3057
. . .
25.
90
Golf
®
/Jetta
®
/Passat
®
‘93-99.5 . . . . . . . . . . . . .
4 Pin (black/yellow)
#SN16802
. . . . . .
29.
99
Sensor blue plastic 2 pin
Most ‘88-94 Golf/Jetta/Passat
#SN13313
. . . . . . . . . . . . . . . . . . . . . . . .
19.
95
Golf/Jetta/New Beetle/Passat ‘99-’05
4 pin Blue . . . . . . . . . .
#SN18309
. . . . .
21.
9 5
4 pin Brown . . . . . . . . .
#SN17961
. . . . .
32.
95
CALL!
