Parts for your 2018 Volkswagen Amarok-Map sensor

2018 Volkswagen Amarok MAP Sensor

The 2018 Volkswagen Amarok is fitted with a MAP (manifold absolute pressure) sensor. Volkswagen factory repair information (Elsa/ErWin) for MY2018 Amarok V6 TDI details the Boost Pressure/Intake Manifold Pressure Sensor (commonly listed as G31/G71) within the intake tract, and the Bosch EDC17 engine control unit used on the Amarok relies on this signal for load and boost control. Volkswagen’s ETKA parts catalogue also lists a manifold pressure sensor across 2018 Amarok diesel variants, confirming its relevance on this model.

On this Amarok, the MAP sensor measures the pressure in the intake manifold or charge pipe, letting the ECU know how much air is actually getting into the engine. Paired with intake air temperature, it helps determine fuelling, turbocharger boost, EGR operation and even altitude compensation. That accurate pressure reading keeps the ute pulling strongly, minimises smoke, and helps with smooth DPF regenerations on long runs across Aussie and Kiwi roads.

When the MAP sensor is unhappy, owners may notice lazy throttle response, higher fuel use, black smoke on hard acceleration, rough idle or sudden limp-home behaviour. Common fault codes include P0106 (MAP range/performance) or P0236/P0237 (boost pressure sensor issues). Because the Amarok’s intake can carry a film of oil mist and soot from EGR, light contamination of the sensor tip isn’t rare, especially on vehicles that do lots of short trips.

There’s no fixed replacement interval, but it’s smart to check the MAP sensor during regular servicing—particularly when air filters, charge hoses and the intercooler are being inspected. If the sensor tip looks sooty, a careful clean with electronics-safe cleaner (not carb or brake cleaner) can restore readings. Always let it dry fully before refitting and make sure the O-ring seals properly. If faults persist, replace with a quality OE-equivalent sensor and clear codes with a scan tool. A quick visual of the connector and loom under the bonnet is worthwhile too, split hoses, loose clamps or wiring corrosion can mimic a bad sensor.

• Inspect during routine services, especially after dusty or stop–start use.
• Clean gently, don’t poke the element or use harsh solvents.
• Refit with a fresh O-ring if required and verify with live data on a scan tool.

FAQs

Where is the MAP sensor on a 2018 Volkswagen Amarok?
It’s mounted in the intake tract—typically on the intake manifold or a charge-air pipe—secured with a small Torx screw and sealed by an O-ring. It’s a compact black sensor with a multi-pin plug, accessible once the engine cover is off.

What symptoms point to a faulty MAP sensor on an Amarok?
Owners often notice sluggish performance, increased fuel consumption, black smoke, uneven idle, or limp mode. Scan tools may show codes like P0106, P0236 or P0237. Contamination from oil mist and EGR soot can skew readings even if the sensor isn’t electrically failed.

Should the MAP sensor be cleaned or replaced?
Light soot can usually be cleaned using electronics-safe cleaner and gentle technique. If readings remain out of range or codes return, replacement is the go. Use an OE-quality part and confirm boost/pressure values with live data after fitting.