Air Temperature Sensor for Mercedes-Amg W203 C204 C63 W204 and More ATS1031
Air Temperature Sensor ATS1031 Mercedes-AMG W203 W204
'OEM QUALITY' Intake Air Temperature (IAT) sensor
Direct replacement for OEM# 0005422818, A0005422818
Intake Air Temperature is a significant component for the installation of a MAF-less air intake setup.
This sensor monitors the temperature of the air entering the engine, which helps the engine's computer (PCM) maintain the balance of air/fuel mixture for optimal engine performance.
A faulty sensor can decrease the life of the engine and reduce the efficiency of fuel consumption.
COMPATIBLE VEHICLES:
- MERCEDES-AMG C32 W203 3.2L M112 SOHC-PB 18v Supercharged MPFI V6 260kW 5sp Auto 4dr Sedan RWD [01/01 - 12/04]
- MERCEDES-AMG C36 W202 3.6L M104 DOHC 24v Fuel Inj. 6cyl 206kW 4sp Auto 4dr Sedan RWD [01/95 - 12/97]
- MERCEDES-AMG C55 W203 5.4L M113 SOHC-PB 24v MPFI V8 270kW 5sp Auto 4dr Sedan RWD [01/04 - 12/07]
- MERCEDES-AMG C63 C204 6.2L M156 DOHC-PB 32v MPFI V8 336kW 7sp Auto MCT 2dr Coupe RWD [01/11 - 12/14]
- MERCEDES-AMG C63 C204 BLACK SERIES 6.2L M156 DOHC-PB 32v MPFI V8 380kW 7sp Auto MCT 2dr Coupe RWD [01/12 - 12/12]
- MERCEDES-AMG C63 C204 EDITION 507 6.2L M156 DOHC-PB 32v MPFI V8 373kW 7sp Auto MCT 2dr Coupe RWD [01/13 - 12/15]
- MERCEDES-AMG C63 C204 PERFORMANCE PACKAGE 6.2L M156 DOHC-PB 32v MPFI V8 358kW 7sp Auto MCT 2dr Coupe RWD [01/12 - 12/12]
- MERCEDES-AMG C63 S204 6.2L M156 DOHC-PB 32v MPFI V8 336kW 7sp Auto MCT 4dr Wagon RWD [01/08 - 12/14]
- MERCEDES-AMG C63 W204 6.2L M156 DOHC-PB 32v MPFI V8 336kW 7sp Auto MCT 4dr Sedan RWD [01/08 - 12/14]
- MERCEDES-AMG C63 W204 EDITION 507 6.2L M156 DOHC-PB 32v MPFI V8 373kW 7sp Auto MCT 4dr Sedan RWD [01/13 - 12/14]
- MERCEDES-AMG C63 W204 PERFORMANCE PACKAGE 6.2L M156 DOHC-PB 32v MPFI V8 358kW 7sp Auto MCT 4dr Sedan RWD [01/10 - 12/13]
- MERCEDES-AMG CL55 C215 5.4L M113 SOHC-PB 24v Supercharged MPFI V8 368kW 5sp Auto 2dr Coupe RWD [01/02 - 12/06]
- MERCEDES-AMG CL63 C216 6.2L M156 DOHC-PB 32v MPFI V8 386kW 7sp Auto 2dr Coupe RWD [01/07 - 12/10]
- MERCEDES-AMG CLS55 C219 5.4L M113 SOHC-PB 24v Supercharged MPFI V8 350kW 5sp Auto 4dr Coupe RWD [01/05 - 12/06]
- MERCEDES-AMG CLS63 C219 6.2L M156 DOHC-PB 32v MPFI V8 378kW 7sp Auto 4dr Coupe RWD [01/06 - 12/11]
- MERCEDES-AMG E36 W210 3.6L M104 DOHC 24v Fuel Inj. 6cyl 200kW 4sp Auto 4dr Sedan RWD [01/96 - 12/97]
- MERCEDES-AMG E55 S211 5.4L M113 SOHC-PB 24v Supercharged MPFI V8 350kW 5sp Auto 4dr Wagon RWD [01/04 - 12/06]
- MERCEDES-AMG E63 W211 6.2L M156 DOHC-PB 32v MPFI V8 378kW 7sp Auto 4dr Sedan RWD [01/06 - 12/09]
- MERCEDES-AMG G55 W463 G-Wagen 5.4L M113 SOHC-PB 24v Supercharged MPFI V8 373kW 5sp Auto 4dr Wagon 4WD [01/11 - 12/13]
- MERCEDES-AMG ML63 W164 6.2L M156 DOHC-PB 32v MPFI V8 375kW 7sp Auto 4dr Wagon AWD [01/06 - 12/11]
- MERCEDES-AMG S63 W221 6.2L M156 DOHC-PB 32v MPFI V8 386kW 7sp Auto 4dr Sedan RWD [01/09 - 12/11]
- MERCEDES-AMG SL55 R230 5.4L M113 SOHC-PB 24v Supercharged MPFI V8 368kW 5sp Auto 2dr Roadster RWD [01/02 - 12/06]
OTHER OEM CROSS REFERENCE:
| CHRYSLER | 04862635AA, 05080343AA, 05149209AA, 05174042AA, 05174042AB, 4862635AA, 5149209AA, 5174042AA, 5174042AB, K05080343AA |
| DODGE | 04862635AA, 05149209AA, 05174042AA, 05174042AB, 5149209AA, K04862635AA, K05174042AA, K05174042AB |
| EVOBUS | 0005422818, 0061532028, 0061538028, 6511530028, A0005422818, A0061532028, A0061538028, A6511530028 |
| JEEP | 04862635AA, 05080343AA, 05149209AA, 05174042AA, 05174042AB, 05174042AC, K04862635AA, K05080343AA, K05149209AA, K05174042AA, K05174042AB, K05174042AC |
| MERCEDES-BENZ | 0005422818, 0061532028, 0061538028, 6511530028, A0005422818, A0061532028, A0061538028, A6511530028 |
| SMART | 0005422818, 6511530028, A0005422818, A6511530028 |
| SSANGYONG | 0005422818 |
| VW | 2D0905379A, 2D0905379B |
What does an intake air temperature (IAT) sensor do?
The intake air temperature (IAT) sensor measures the temperature of air entering the engine and sends this data to the ECU. Cold dense air contains more oxygen than warm thin air and requires more fuel for the same combustion result. The ECU uses IAT data alongside manifold pressure or airflow data to calculate the correct fuel injection quantity and ignition timing for the current air temperature conditions. On many vehicles the IAT sensor is integrated into the mass airflow (MAF) sensor housing.
What are the symptoms of a failing air temperature sensor?
Common symptoms include poor fuel economy as the ECU miscalculates fuel delivery based on incorrect temperature data, rough idle or hesitation under acceleration, black smoke from the exhaust due to over-fuelling, hard starting particularly from cold, and a Check Engine light with IAT circuit fault codes P0110 to P0114. Some vehicles may also experience difficulty starting because the ECU cannot correctly calculate the cold start enrichment required.
How do I test an air temperature sensor?
The IAT sensor is a thermistor that changes resistance with temperature. With a cold engine (ambient temperature) the resistance is high - typically 2,000 to 3,000 ohms at 20 degrees C. As temperature rises resistance falls. You can test resistance with a multimeter at the sensor connector and compare against the temperature/resistance chart in your vehicle service manual. An OBD2 scanner showing an IAT reading that does not match ambient temperature when the engine is cold is also a strong indicator of failure.
Is the IAT sensor the same as the MAF sensor?
No - they are different sensors, although on many modern vehicles the IAT sensor is built into the MAF sensor housing as a combined unit. The MAF sensor measures the mass of air entering the engine using a hot wire element. The IAT sensor measures the temperature of that air using a thermistor. If you have a combined MAF/IAT unit that fails, you typically need to replace the complete assembly. Use the Vehicle Part Finder to confirm which type is fitted to your vehicle.
Can a faulty IAT sensor cause my vehicle to fail an emissions test?
Yes. An incorrect IAT reading causes the ECU to miscalculate fuel delivery, typically resulting in a rich running condition with higher CO and hydrocarbon emissions. An active fault code from the IAT sensor will also cause most roadworthy and emissions inspection systems to flag the vehicle as failing the on-board diagnostics check before exhaust emissions are even measured. Resolve any IAT sensor faults before presenting for an emissions test.
Does the IAT sensor need to be reset or calibrated after replacement?
No - the IAT sensor is a passive thermistor requiring no calibration or programming. It is a direct plug-in replacement. Clear any stored fault codes with an OBD2 scanner after fitting the new sensor. The ECU will immediately begin reading the new sensor data and adjust fuelling accordingly. If the vehicle has been running rich due to the faulty sensor, fuel trim values will self-correct over several drive cycles.
| Identification | |
|---|---|
| SKU | CAT033-4 |
| Barcode # | 4027816371427 |
| Brand | Aftermarket OEM Replacement |
| Part Numbers | |
| Part Number | ATS1031 |
| Reference OEM Number | A0005422818 |
| Other OEM Numbers | 0005422818, A 000 542 28 18, MN960276 |
| Related Part Numbers | AT333, ATS1031, CAT033, TS10459 |
| Trade Part Numbers | VEMO: V30-72-0103, WALKER: 210-1062 |
| Product Specifics | |
| Product Type | SENSOR |
| Sensor Type | Intake Air Temperature Sensor |
| Features | Direct Fit |
| Manufacturer Warranty | 1 Year |
| Number of pins | 2 -pin connector |
| Connector Shape | oval |
| Housing Colour | Black |
| Mounting Type | Cradle mounting |
| Housing Diameter | 15 mm |
| Other Details | |
| Note | Always verify fitment using your vehicle's OEM part number. |
| Unit Of Measure | ea |
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