Vehicle data

Volkswagen Passat vehicle data API: signals, model years and connection options

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DIMO gives developers API access to Volkswagen Passat vehicle data. Model years 2008 and newer connect with a DIMO device (DIMO LTE R1 or AutoPi). Headline signals include odometer, fuel percentage and vehicle speed.

DIMO gives developers API access to vehicle-state data: diagnostics, fault codes, battery and fuel health, odometer, and maintenance signals. For the Volkswagen Passat, data comes from a DIMO device, and coverage was tested for model years 2008 and newer. Vehicle owners consent to and control sharing, so builders get data with clear provenance. You read the data through the Telemetry API with a Vehicle JWT, which requires the vehicle to be shared with your Developer License.

Signals by connection type

DIMO device — DIMO LTE R1 (2008 and newer)

SignalDIMO nameUnit
OdometerpowertrainTransmissionTravelledDistancekm
Fuel PercentagepowertrainFuelSystemRelativeLevel%
Vehicle Speedspeedkm/h
Vehicle Ignition StatusisIgnitionOn—
Engine RPMpowertrainCombustionEngineSpeedrpm
Coolant TemperaturepowertrainCombustionEngineECT°C
Air TemperatureexteriorAirTemperature°C
Back Left WheelchassisAxleRow2WheelLeftTirePressurekPa
Back Right WheelchassisAxleRow2WheelRightTirePressurekPa
Diagnostic Trouble CodesobdDTCList—
Distance with MIL OnobdDistanceWithMILkm
DTC CountobdStatusDTCCount—
Engine runtimeobdRunTimeseconds
Front Left WheelchassisAxleRow1WheelLeftTirePressurekPa
Front Right WheelchassisAxleRow1WheelRightTirePressurekPa
Fuel LevelpowertrainFuelSystemAbsoluteLevelliters
Fuel TypeobdFuelTypeName—
Low Voltage BatterylowVoltageBatteryCurrentVoltagevolts
OBD Device Plugged InobdIsPluggedIn—
Powertrain TypepowertrainType—
Throttle PositionpowertrainCombustionEngineTPS%
Altitude LevelcurrentLocationAltitudem
CoordinatescurrentLocationCoordinates—
HeadingcurrentLocationHeadingdegrees

DIMO device — AutoPi (2010 and newer)

SignalDIMO nameUnit
OdometerpowertrainTransmissionTravelledDistancekm
Vehicle Speedspeedkm/h
Engine RPMpowertrainCombustionEngineSpeedrpm
Coolant TemperaturepowertrainCombustionEngineECT°C
Air TemperatureexteriorAirTemperature°C
Barometric PressureobdBarometricPressurekPa
Engine Air IntakepowertrainCombustionEngineMAFgrams/second
Engine LoadobdEngineLoad%
Engine runtimeobdRunTimeseconds
Intake temperatureobdIntakeTemp°C
Low Voltage BatterylowVoltageBatteryCurrentVoltagevolts
Throttle PositionpowertrainCombustionEngineTPS%
Altitude LevelcurrentLocationAltitudem
CoordinatescurrentLocationCoordinates—

No factory connectivity?

Volkswagen Passat model years 2008 and newer have no OEM cloud connection listed. For these years, a DIMO device (DIMO LTE R1 or AutoPi) plugs into the OBD-II port and streams vehicle signals once the owner connects it and consents to sharing.

See the developer quickstart for how owners connect vehicles and grant access.

Events available

  • Idling
  • Refuel
  • Harsh braking
  • New diagnostic trouble code

Build it

Query the latest Volkswagen Passat signals with the DIMO TypeScript SDK. The vehicle owner must first share access with your app through DIMO Connect.

import { DIMO } from '@dimo-network/data-sdk';
const dimo = new DIMO('Production');
const tokenId = Number(process.env.DIMO_TOKEN_ID); // from DIMO Connect
const developerJwt = await dimo.auth.getDeveloperJwt({
client_id: process.env.DIMO_CLIENT_ID,
domain: process.env.DIMO_REDIRECT_URI,
private_key: process.env.DIMO_API_KEY,
});
const vehicleJwt = await dimo.tokenexchange.getVehicleJwt({
...developerJwt,
tokenId,
});
// Latest Volkswagen Passat signals
const data = await dimo.telemetry.query({
...vehicleJwt,
query: `
query {
signalsLatest(tokenId: ${tokenId}) {
powertrainTransmissionTravelledDistance {
value
timestamp
}
powertrainFuelSystemRelativeLevel {
value
timestamp
}
speed {
value
timestamp
}
}
}`,
});
console.log(JSON.stringify(data, null, 2));

Full walkthrough: Developer quickstart.

FAQ

Can I read fuel level remotely on a Volkswagen Passat?

Yes, with a DIMO device. Query the Telemetry API with a Vehicle JWT to read fuel level, or use the segments query with the refuel detection mechanism to find where fuel level rises significantly.

How do I track a Volkswagen Passat with no connected services?

Use a DIMO device. Once the owner shares the vehicle with your Developer License, exchange your Developer JWT for a Vehicle JWT through the Token Exchange API and query the Telemetry API.

Can I get check-engine light alerts for a Volkswagen Passat?

The DIMO LTE R1 device reports the dtc event along with diagnostic trouble code signals. To get pushed alerts, configure a webhook in the Vehicle Triggers API, which sends a POST request to your targetURL when your condition is met.

How do I detect idling on a Volkswagen Passat?

Use a DIMO device and the segments query in the Telemetry API with the idling detection mechanism. It finds contiguous periods where engine RPM stays in the idle range, and maxIdleRpm defaults to 1000.

How do I verify Volkswagen Passat mileage?

With a DIMO device, call the Attestation API odometer statement endpoint, POST /v2/attestation/odometer-statement/:tokenId, with a Vehicle JWT. Then retrieve the resulting verifiable credential through the Telemetry API.

Which Volkswagen Passat model years work with DIMO?

DIMO devices have been seen working on Volkswagen Passat model years 2008 and newer. For older vehicles, contact DIMO for additional support.

Do I need hardware to get Volkswagen Passat data?

Yes. DIMO lists no OEM cloud connection for the Volkswagen Passat, so data comes from a DIMO device.

Source: DIMO vehicle compatibility records. Coverage tested on a connected vehicle. Last verified .