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Multi-Gauge Wiring

Only the OBD2 connection is required for function. All other wires are optional. We suggest simply plugging the gauge into the OBD2 port before the full install just so you can see it in action before taking apart your vehicle or hooking up optional sensors or wiring.

See your QUICK START GUIDE in the box for details.

BROWN =Analog1
BLUE =Analog2
GREEN =Dimmer
(hook to an interior lighting connection. Gray/Red on BMW trunk pop switch or cig lighter… VW use position 10 on the light switch or tap + of lighted vent wheel).
AUX PLUG = Analog boost sensor connection.

Car Config And Install Downloads

(Click on your car manufacturer to view the installation guide)

Vehicle Platform Vent Assembly Boost Gauge Multi-Gauge Config Settings Notes and Compatibility Details
Audi 8V (2013+)
A3 / S3
Vent Assembly
 PDF
Boost Gauge
 PDF
Car.7
bSt.d
Audi 8L (1996-2003)
A3 / S3
Boost Gauge
 PDF
Car.0 for 1.8t
Car.3 for non-Turbo
Audi 8P (2005-2013)
A3 / TT MK2
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.0 for 1.8t
Car.1 for 2.0t
Car.3 for non-Turbo
2005 model year requires V.B. Software
Audi B5 (1994-2001)
A4 / S4 / RS4
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.0 for 2.7t
bSt.C for digital boost
Car.3 for other engines
Boost and Vacuum from OBD2 port for 2.7T,
analog sensor required for all other engines
Audi B6 (2000-2006)
A4 / S4
Boost Gauge
 PDF
Same as B7 Car.3 Boost readings require analog sensor.
Audi B7 (2006-2008)
A4 / S4 / RS4
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.0
Audi B8 (2008+)
A4 / S4 / A5 / S5 / RS5
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.1
Car.3 for 3.0t
RS vehicles require special software.

NOTE: Some vehicles require positioning of the control box to go below the vent and behind the dash trim because of lack of space in some models.

Audi C5 (1997-2004)
A6 S6 RS6
Boost Guage
 PDF
Multi-Gauge
 VID
Car.0 for 2.7t
Car.3 for others
RS6 requires analog boost sensor.
Audi C6 (2006-2011)
A6 S6 RS6
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.0
Car.3 for 3.0t
Audi C7 (2011+)
A6 S6 RS6 A7 S7 RS7
Vent Assembly
 PDF
Boost Guage
 PDF
Multi-Gauge
 VID
Car.3 RS vehicles require special software.
Audi Q5 (2008+) Boost Gauge
 PDF
Car.1
Audi Q7 (2006+) Boost Gauge
 PDF
Car.1
Audi R8 (2008+)
V8 / V10
Boost Gauge
 PDF
Car.0
bSt.A for boosted
Analog sensor required for boosted applications.
Audi TT (1998-2006)
MK1
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.0 for 1.8t
Car.3 for others
bSt.C for diesel
Vehicle Platform Vent Assembly Boost Gauge Multi-Gauge Config Settings Notes and Compatibility Details
BMW E46 3 Series (1999-2006)
323 / 325 / 328 / 330 / M3
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.3
bSt.A for boosted
323 / 328 / 330 (non-M3) E46 vehicles have no compatibility issues known to date.

Analog sensor not included, but required for boosted applications

E46 M3 has the following compatibility issues which can prevent function:
– EURO ECU not OBD2 compliant
– Some tunes block OBD comms
– US Spec requires OBD recall performed, most US cars have this already.

BMW E60 5 Series (2003-2010)
525 / 528 / 530 / 535 / 550 / M5
Boost Gauge
 PDF
Multi-Gauge
 VID

N54 Boost Tap
 PDF  /    VID

Car.4 for 2008+
Car.3 for 2003-2007
bSt.A
INCLUDES:
Analog Sensor and Tubing Kit

2008+ requires canbus box
2003-2007 requires K-Line box
M5 for 2008+ ONLY

BMW E70 E71 X Series (2008-2013)
X5 / X6 / X5M / X6M
Boost Gauge
 PDF
xDrive35i = See E90

xDrive50i & X5M X6M
See F1X 5er settings

INCLUDES:
Analog Sensor and Tubing Kit

See E9X 3er for N54/N55 details

BMW E85/E86 Z4 (2003-2008) Vent Assembly
 PDF
Boost Gauge
 PDF
See E46 for settings Same as E46, no known compatibility issues on E85/E86 models. Analog sensor not included but required if boosted.
BMW E89 Z Series (2009+) Boost Gauge
 PDF
See E9X for settings. See E9X 3er for N54/N55 details.
BMW E8X 1 Series (2008-2013)
135 / 1M
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 PDF  /    VID

Non-OBD
 PDF

N54 Boost Tap
 PDF  /    VID

See E9X for settings. See E9X 3er for N54/N55 details.
BMW E9X 3 Series (2006-2013)
325 / 328 / 330 / 335 / M3
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 PDF  /    VID

Non-OBD
 PDF

N54 Boost Tap
 PDF  /    VID

N54 Engine:
bSt.A (analog sensor)
Car.4 (n54 in old software)

N55 Engine:
bSt.d
Car.5 (n55 )
Car.6 for MAP tap.
(A.n55)

Pre-2008 vehicles:
K-Line Box or Analog Box
Car.3
bSt.A (analog sensor)

Includes Analog Boost Sensor
Includes n54 PnP Vac Tubing

N54 requires the included tubing kit to tap vac/boost at the DVs

N55 reads via the obd2 port.

All Flash tunes fully supported.
For piggyback tunes, N54 needs no changes, N55 needs set to Car.6 with a wire tap going from MAP sensor output to BLUE wire.

BMW F12 6 Series (2012+) Boost Gauge
 PDF
See F1X 5er settings See F1X 5er details.
BMW F1X 528i 535i 550i M5 (2010+) Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.8 (n63)

bSt.d
bSt.A for MAP tap

For tuned vehicles, we recommend the MAP sensor TAP method.
BMW F20 1 / 2 Series (2013+)
M135i / M235i
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.7
bSt.d
bSt.P for MAP tap
N20 and N55 engines both have MAP sensors. If using a piggyback tune, tap the 0-5v output of the MAP sensor and run to the BLUE wire, and then choose bSt.P
BMW F3X/F8x 3 / 4 Series (2013+)
320i 328i 335i 435i M3 M4
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.7 (F30)
bSt.d
bSt.A for MAP tap
N20 and N55 engines both have MAP sensors. If using a piggyback tune, tap the 0-5v output of the MAP sensor and run to the BLUE wire, and then choose bSt.A. To use the analog boost sensor (+$30, not included), you must use Car.4 and bSt.A
Vehicle Platform Vent Assembly Boost Gauge Multi-Gauge Config Settings Notes and Compatibility Details
Camaro (2010-2015)
Gen 5
Vent Assembly
 PDF
Boost Gauge
 PDF
Car.7
bSt.d
Vehicle Platform Vent Assembly Boost Gauge Multi-Gauge Config Settings Notes and Compatibility Details
F-150 (2015+)
F-150 Ecoboost
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 PDF
FORD
bSt.d for MAP sensor boost
Mustang (2005-2014)
Gen 5
Vent Assembly
 PDF
Boost Gauge
 PDF
FORD
bSt.d for MAP sensor boost
Mustang (2015+)
Gen 6
Vent Assembly
 PDF
Boost Gauge
 PDF
FORD
bSt.d for MAP sensor boost
Vehicle Platform Vent Assembly Boost Gauge Multi-Gauge Config Settings Notes and Compatibility Details
A Class (2013+)
CLA250
Vent Assembly
 PDF
Boost Gauge
 PDF
bSt.d
Car.7
SH.n
Vehicle Platform Vent Assembly Boost Gauge Multi-Gauge Config Settings Notes and Compatibility Details
Cooper (2001-2007)
R53
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 PDF
Car.3 for all.
bSt.d
Cooper (2007-2013)
R56 / R57 / R58 / R59
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.5 for BMW codes
Car.7 for OBD2 codes
bSt.d
Supports both extended factory BMW code reading and generic obd2 code reading.
Cooper (2014+)
F56
Vent Assembly
 PDF
Boost Gauge
 PDF
bSt.d
Car.7
Vehicle Platform Assembly Boost Gauge Multi-Gauge Config Settings Notes and Compatibility Details
Opel Insignia / Buick Regal (2011+) Boost Gauge
 PDF
Multi-Gauge
 VID
Car.0 or tsi
bSt.d
Vehicle Platform Vent Assembly Boost Gauge Multi-Gauge Config Settings Notes and Compatibility Details
Porsche Cayenne (2003-2010)
955 / 957
Vent Assembly
 PDF
Boost Gauge
 PDF
955 K-Line:
Car.3

957 Canbus:
Car.7

955 requires K-Line control box
957 requires Canbus control box
-957 also supports EGT readings

Analog boost sensor required for Turbo models. Use bSt.A

Vehicle Platform Vent Assembly Boost Gauge Multi-Gauge Config Settings Notes and Compatibility Details
SEAT Leon (1999-2006)
MK1
Boost Gauge
 PDF
Same as Audi B5 Same as Audi B5
SEAT Leon (2005-2012)
MK2
Vent Assembly
 PDF
Boost Gauge
 PDF
Same as VW mk6 Same as VW Mk6
Vehicle Platform Vent Assembly Boost Gauge Multi-Gauge Config Settings Notes and Compatibility Details
Subaru / Scion / Toyota (2012+)
BRZ / FR-S / FT86
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 VID
FA20 setting
bSt.d for MAP sensor
bSt.A for Analog
MAP sensor reads up to 5 PSI

We recommend optional analog sensor for turbo or supercharged vehicles because of factory MAP limitations

WRX STI (2008-2014) Boost Gauge
 PDF
Car.7
bSt.d
Includes OEM vent by default.
Vehicle Platform Vent Assembly Boost Gauge Multi-Gauge Config Settings Notes and Compatibility Details
VW B7 Passat NMS (2012+) Boost Gauge
 PDF
Multi-Gauge
 VID
Car.7 for 1.8t
bSt.d
Car.1 for V6

Car. for TDI

For North American market only.
VW Beetle A5 (2012+) Boost Gauge
 PDF
Same as Mk6 Same as Mk6
Beetle A5 = Beetle 2
VW Mk4 (1997-2004)
Golf / GTI / Jetta
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.0 for 1.8t models
Car.3 for N/A models
Car.3 for R32
bSt.C for boost

TDI:
Car.3
bSt.C

Golf / GTI models require Jetta VENT for installation. Please see Vent PDF.
VW Mk5 (2005-2009)
Golf / GTI / R32 / Jetta
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.0 FSI
Car.1 TSI
Car.1 R32 / NA Models
2005 Models TFST V.B.

TDI:
requires V.B. TDI

2005 Models require V.B. software
TDI requires V.B. software
VW Mk6 (2010-2013)
Golf / GTI / JSW / Golf R
Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 VID
Car.0 FSI, Golf R
Car.1 TSI, GTI
bSt.d

TDI:
requires TDI soft

TDI models require special software at time of order.

bSt.F boost mode can be used if APR tuned vehicle is showing stock boost on bSt.d

VW Jetta Mk6 (2011+)
Jetta / GLI
Boost Gauge
 PDF
Multi-Gauge
 VID
Same as Mk6 Golf Same as Mk6 Golf
VW Mk7 (2013+)
GTI / Golf R
Boost Gauge
 PDF
Multi-Gauge
See Mk6
Car.7
bSt.d
TDI models require special software at time of order.

NOTE: if using analog boost sensor, select car.1 and bst.A

VW New Beetle (1999-2011) Boost Gauge
 PDF
Multi-Gauge
See B5 A4
Same as Audi B5 Same as Audi B5
New Beetle = Beetle 1
VW Passat B5 (1997-2005) Boost Gauge
 PDF
Multi-Gauge
 VID
Car.3 Boost readings requires analog sensor on 1.8t
VW CC / Passat CC (2008+) Vent Assembly
 PDF
Boost Gauge
 PDF
Multi-Gauge
 VID
Same as Mk6 Golf Same as Mk6 Golf

2012+ models require VENT option, as the vent has permanent modifications.

VW Scirocco 3 / EOS (2008+) Boost Gauge
 PDF
Multi-Gauge
See Mk6
Same as Mk6 Golf Same as Mk6 Golf
VW Tiguan (2008+) Boost Gauge
 PDF
Multi-Gauge
 VID
Same as Mk6 Golf Same as Mk6 Golf

Operation Details

BUTTON FUNCTIONS (Running Mode)

Available Readouts

Boost: This mode will show vacuum and boost. Depending on settings in the config menu this may be from ECU data or an external analog sensor, or MAP wire-in for BMW. Boost is read in PSI by default and Vacuum is inHg. If you configure the gauge to metric boost/vacuum will be in BAR.

Coolant: Coolant temp. Unlike the needle on your dash, this will show you exactly the temp that your engine is currently running at, and is configurable between Celsius & Fahrenheit.

Air: Air intake temperature. This is the reading of the temperature of the air entering the engine, and is configurable between Celsius & Fahrenheit. On most vehicles, this reading is taken from the T-MAP sensor on the charge pipe, before the throttle.

IGNTN: Ignition timing. This mode will show you the spark timing of your engine in real-time.

EGT: Exhaust Gas Temperature. This is the temp of the exhaust gas as calculated by your ECU. (canbus vehicles only)

Throttle: Actual throttle plate position. Use this mode to see how your car changes the actual drive by wire throttle blade in relation to what your foot tells it to do.

rp-Shift: RPM readout. It can be handy to use this mode to see an exact RPM or to record/playback and see your shifts.

Speed: Actual road speed direct from VSS. This is the actual road speed value of the car, uncorrected. This is the raw value; therefore it may not match your cluster which tends to read high in many cars. This value is taken from the left rear wheel on most vehicles.

0-60: Performance Timer, 0-60 timer with auto start / stop.

Batt: Battery Voltage. This is the voltage of your cars power system, anything between 13-14.5 volts while running is normal.

Code Reading: Read and Clear diagnostic codes, this happens automatically at startup. On K-Line vehicles this is disabled by default because it delays startup.

Peak Recall, Record, and Playback Features Explained.

PEAK RECALL:
The gauge offers peak recall of the PEAK VALUE on the selected mode, since the last recall, or since the vehicle was started. In addition to this, for 2008+ model year cars the gauge also stores peaks for EGT, Air, Coolant in the background, so that you can switch to that mode later, after a lap for example, and recall your peak temperatures. A quick tap of the leftmost button will show your peak value.

RECORD/PLAYBACK:
The 15 seconds record/playback feature is available on canbus vehicles only, and provides a way for you to see 15 seconds of historical data from the current mode. Recording is started when the peak recall button is pressed. Simply tap peak recall, do some acceleration, and then after you are able to look at the gauge again, hold the peak recall button and the gauge will show you the first 15 seconds of data from that mode, as well as RPM scaled onto the bargpaph readout.

Code Reading, Code Clearing, and Extended BMW “Dealer Level” Code Reading.

CODE READING:
For vehicles 2008, code reading is performed automatically on startup. For pre-2008 cars, you must enable code reading in the configuration menu. Code reading at startup is disabled by default on pre-2008 model year cars because the code reading process on older vehicles can take up to 10 seconds, and it would delay startup.

Extended BMW Code Reading.
Extended dealer level codes will be read out for E8X/E9X and 2008+ E6X model and MINI vehicles.

CODE CLEARING:
The configuration menu (see config directions for details) contains a Clr.C option. Use this to clear codes.

The best way to clear codes is as follows:
-Start the car, Enter config menu, Go to the Clr.C option, HOLD the leftmost button till the gauge stops saying HOLD. For pre-2008 vehicles, the gauge will reset and then show CLRD, for 2008+, the gauge will show CLRD right away. For some 2014+ model year vehicles, you may need to shut off the engine, but have the ignition ON before holding the button for Clr.C, but most cars let you clear codes while the engine is running.

Configuring The Gauge

ENTER CONFIG | at any time

Hold both buttons and RELEASE two seconds after you see the word “Conf” flash on the screen.

SAVING YOUR SETTINGS | Settings DON’T SAVE until you exit the menu

HOLD the rightmost button until the gauge turns off or resets (if your car is running).

CONFIG BUTTON FUNCTIONS

LEFT BUTTON:

TAP = Change Value
HOLD = Change Value fast

RIGHT BUTTON

TAP = Move to next config option
HOLD = EXIT and SAVE settings

CONFIGURABLE PARAMETERS

Display Options / Valet Mode:
d.On = display on, normal operation, Off = Lockout / Valet, display off. Enter config with car OFF to re-enable from valet. On.A = Auto dimmer (must attach green wire to red/gray dimmer line on trunk pop switch or other locations) On.P = persistent dimmer, (stays on last setting after restarts.)

English/Metric:
En.Y Y, N, b, or c English units. Y = English, N = Metric, b = Boost only (boost in PSI, all other data in metric), c = temp in Celsius, all other data in English

Boost Pressure Resolution:
Pr0.1 0.1 or 0.5 or 1.0 decimal point. 0.1 = tenths, 0.5 is rounded to 5 tenths, 1.0 = whole numbers

Vacuum Bargraph:
U.bg.Y Y or N Vacuum bargraph in boost mode – set to N for no bargraph while in vacuum

Shift Light – Gauge display will FLASH when above this RPM:
SL.57 . 30 – 99 Shift light activation RPM x 100, default is 5700

Boost Reading Selection:
bSt.d or A or n, digital or analog or none. (analog is for gauges with boost sender and tubing to manifold) Digital is used for n55/n20 only. The A setting will use the blue wire MAP tap for certain CAR selections. See the vehicle specific settings page.

Analog Input Config (see the analog inputs section for details):
A1.N Y or N Enable or disable the first analog input (brown wire)
A2.N Y or N Enable or disable the second analog input (blue wire)

Code Clearing:
Clr.C Hold the first button to clear codes. See Code Reading and Clearing section above for details.

Code Reading (K-Line vehicles only):
rd.C.n , n = no code read, Y = read at startup

Analog Boost Sensor Calibration (required after install of sensor!):
Cal.b , Calibrate the analog boost sensor to your barometer. — tap left button after confirming the engine is off. Calibrate your analog sensor any time that your altitude changes significantly to ensure the highest accuracy.

Car Selection (not available on all models):
Car.0 through Car.8 and ANLG (analog) mode. See the CHART above for more details.
NOTE: For BMW models, car selections 5 through 8 cause the bSt.A mode to expect MAP sensor 0-5v input on the blue wire. If you have a bSt.P option, this does that instead of Car selection. The default setting for this value will change depending on the gauge model that was shipped. Use Car.0-5 bSt.A for analog boost sensor for this reason.

Sh.X (Y, n, A, P):
Vehicle specific software protocol adjustments (See configuration list for details, use Sh.A unless otherwise directed)

Menu Configuration Map

View, Download, and print our handy menu configuration map.

Analog Inputs

The multi-gauge harness has 3 linear analog inputs, 2 of which can be used as universal displays for ANY 0-5v sensor with a linear ascending output. The 3rd is used for the Analog Boost Sensor. Do not hook up a device that sends more than 5 volts or you WILL damage the control box.

5v POWER SOURCE:
If your sensor requires a 5v power source, you can use the PURPLE wire on the gauge harness.

To enable an analog input, enter the config menu and set the A1 input to Y for yes.
After doing this, 3 new options will appear:

A1.DP, analog 1 decimal point position.
The gauge will show 9999 on the screen, and tapping the first button will move the decimal point.

A1.Lo, analog 1 Low volt
Ov reading which the gauge will show when it sees ZERO volts on the input. -999 through 9999

A1.Hi, analog 1 High volts
5v reading, which the gauge will show when it sees FIVE volts on the input. -999 through 9999

A1.bL and A1.bH, limits of the bargraph for that input.
L is the bargraph start, H is the bargraph end.
You can leave these the same, or shrink the range for better visibility.

EXAMPLE CONFIGURATION – LC-1 / LC-2 AFR Controller:

According to the LC-1 wideband controller documentation, Analog output 2 is the 0-5v output.

LC-1 = BROWN WIRE. LC-2 = YELLOW WIRE.
LC-1/2 default output is 0V = 7.35 AFR and 5V = 22.39 AFR.

To configure our gauge to show this on the first analog input, we would use the following settings:
A1.DP, 2 decimal points, 99.99
A1.Lo, 7.35
A1.Hi, 22.39
A1.bL, 7.35
A1.bH, 22.39

After putting these settings onto the analog input, the gauge will show proper AFR displayed in the Analog 1 gauge mode which will appear in the running mode as AN 1.

Troubleshooting Checklist

Make sure the gauge is set to d.On … if you set the gauge to display off (d.Off) you will need to have the car OFF to re-enter config by holding both buttons.

Make sure the obd2 connection is secure, try unplugging and replugging it a few times with the car running. Some ports can be stiff.

Check the chart at the top of this page, if your vehicle has a K-Line box, try setting it to Car.3

Check your obd2 port fuse; on a fuse chart this will usually say OBD or DLC.

Is your vehicle compatible?
Check the chart at the top of this page to make sure, read the notes section for details.

If you are still having problems, please email support@p3cars.com or call 1-614-317-3035

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Contact us using our Tech Support Request Form and someone will contact you.