Zeroline Gauge - Audi A3 / S3 / RS3 8V
ZEROLINE VENT GAUGE
Audi A3 / S3 / RS3 8V
WORLDWIDE SHIPPING & CUSTOM BUILDS
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Hand assembled in small batches. Custom requests are usually possible.
BUILT TO ORDER
Every Zeroline Gauge is built to order, hand assembled, and thoroughly tested before dispatch. Our design has been validated on our own vehicles over more than 10,000 km of real-world driving.
Add-ons +
Software Updates
Keep your Zeroline Gauge up to date with the latest firmware, performance improvements and new features.
Access Software UpdaterLive ECU data.
Real-time engine data
✓ Boost Pressure + Peak Memory
✓ Oil Temperature
✓ Coolant Temperature
✓ Intake Air Temperature
View all live ECU metricsShow less
LIVE ECU METRICS
BOOST
Boost Pressure + Peak Memory
THERMAL
Oil Temperature
Coolant Temperature
Intake Air Temperature
Ambient Temperature
ENGINE
RPM
Ignition Timing
Calculated Torque
Throttle Position (TPS)
VEHICLE
Vehicle Speed
Battery Voltage
Air Fuel Ratio (AFR)
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THE DETAILS
Frequently Asked Questions
How long does shipping take?
Every Zeroline Gauge is hand assembled, tested, and quality checked on our own vehicles before dispatch. Each unit undergoes over 5 km of real-world testing to ensure reliability and performance. Due to our small-batch production process and current demand, please allow 5–10 business days for shipping and delivery.
Will installing it in the vent affect heating or A/C?
No. The Zeroline Gauge is engineered to retain airflow through the factory vent, so heating and A/C performance are not affected. Each gauge is designed specifically for its platform to ensure minimal compromise.
Is every Zeroline Gauge handmade?
Yes. Every Zeroline Gauge is hand assembled, tested and quality checked in small batches before shipping. We focus on craftsmanship rather than mass production to ensure every unit meets our standards.
Can the Zeroline Gauge handle extreme temperatures?
Yes. We have torture-tested our gauges from well below freezing to extreme heat well beyond typical in-car conditions, including environments hot enough to soften or melt plastics, and they continued to function without failure.
Do I need to buy anything extra or is it Plug & Play?
Nothing extra is required. Your Zeroline Gauge comes with everything needed for installation. Optional tools and accessories are simply available for those who want additional convenience.
How accurate are the sensor readings?
The Zeroline Gauge displays real-time data directly from your vehicle's ECU sensors. In many cases, these values are more accurate than the dashboard gauges, which often display softened or averaged readings. Optional analog sensors may be supported for specific data types where maximum precision is desired.
What if I want to use the OBD2 port for something else?
Simply unplug the gauge whenever you need to use another OBD2 device. Your settings and preferences are saved and will be restored when you reconnect it.
Will installing a Zeroline Gauge void my vehicle warranty?
No. A Zeroline Gauge functions the same way as an OBD2 diagnostic scan tool by reading information from the vehicle. Connecting a diagnostic device alone does not void a manufacturer's warranty. Warranty decisions depend on the actual cause of a fault rather than the presence of an aftermarket gauge.
Will modifications or ECU tuning affect my readings?
Standard bolt-on modifications and ECU reflashes typically do not affect reading accuracy.
SUPPORT
Installation Guides
Download the correct guide for your Zeroline Gauge installation.