• Cold Air Intake for Mercedes-Benz ML320 (1998-2003) 3.2L V6 Engine
  • Cold Air Intake for Mercedes-Benz ML320 (1998-2003) 3.2L V6 Engine
  • Cold Air Intake for Mercedes-Benz ML320 (1998-2003) 3.2L V6 Engine
  • Cold Air Intake for Mercedes-Benz ML320 (1998-2003) 3.2L V6 Engine Default Title

Cold Air Intake for Mercedes-Benz ML320 (1998-2003) 3.2L Engine

$84.99
$84.99
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Maximize Induction Efficiency for your Mercedes-Benz M112 & M113 Powered Chassis

Who It’s For: Designed specifically for Mercedes-Benz owners running the M112 V6 and M113 V8 engine families who want to improve throttle response and hear that signature German engineering work.

The Problem: The factory intake tract on the M112 engine is designed primarily for sound suppression and manufacturing cost. The stock corrugated plastic tubes create significant air turbulence and are prone to heat-soaking, which pulls timing and kills power. Furthermore, after two decades of heat cycles, the original plastic often becomes brittle, leading to micro-cracks and unmetered air leaks.

The Solution: This system replaces the restrictive factory air box with mandrel-bent T304 lightweight aluminum piping. By providing a smooth, high-velocity path for oxygen, we’ve corrected the airflow bottlenecks of the M112, delivering a more aggressive induction note and a noticeable improvement in mid-range torque.

Why This is the Ultimate Upgrade

  • Enhanced Airflow Dynamics: The T304 aluminum construction maintains a consistent inner diameter, reducing the air-drag found in the ribbed factory hoses for better throttle sensitivity.
  • High-Efficiency Filtration: Includes a washable, reusable synthetic media filter that offers superior debris capture while increasing the total surface area for air intake compared to flat paper filters.
  • Bolt-On Integration: This kit is a direct replacement for the stock plumbing, requiring no permanent modifications or ECU flashing to see immediate results in drivability.

Technical Specifications

Fitment 1997-2003 Mercedes-Benz ML/E/CLK Class
Engine Family M112 (V6) and M113 (V8)
Factory Ratings 215 HP / 229 lb-ft (3.2L) & 275 HP / 295 lb-ft (4.3L)
Part Numbers 1998, 1999, 2000, 2001, 2002, 2003, 3.2, 4.2, 4.3

Compatibility & OEM Reference

Fits the Following Vehicles:

  • 1998-2003 Mercedes-Benz CLK320 with 3.2 V6 Engine
  • 1998-2003 Mercedes-Benz E320 with 3.2 V6 Engine
  • 1998-2003 Mercedes-Benz ML320 with 3.2 V6 Engine
  • 1998-2002 Mercedes-Benz E430 with 4.3 V8 Engine
  • 1997 Mercedes-Benz E420 with 4.2 V8 Engine

Interchange Part Numbers:

1998, 1999, 2000, 2001, 2002, 2003, 3.2, 4.3, 4.2, M112, M113, M119

The Performance Promise

Buy with confidence. As tuners, we know that better breathing means a happier engine. We recommend a battery reset after installation to allow the Bosch ME fuel management system to adapt to the increased airflow volume. Backed by real automotive experts and fast shipping.

Engine Safety Rating
Difficulty 

Fitment

Make

Mercedes Benz

Engine Size
  • 3.2L

Year
  • 1998
  • 1999
  • 2000
  • 2001
  • 2002

Installation & Tools

The Wrench Time

  • Estimated Time: 45-60 Minutes
  • Difficulty: 3/10 - A straightforward bolt-on, but requires a delicate touch around old, heat-cycled German plastics on the W163 chassis.

Tools You Will Need

  • 10mm socket and wrench (Battery and heat shield bolts)
  • 8mm nut driver (Hose clamps)
  • T25 Torx driver (MAF sensor transfer)
  • Flathead screwdriver (Harness clips and pry points)
  • Silicone spray or WD-40 (Lubricating rubber mounting grommets)
Mechanic’s Pro Tip (The "Gotcha"):
The M112 V6 engine inside your 1998-2002 Mercedes Benz M-Class 3.2L uses a massive factory engine cover that doubles as the airbox. Underneath this cover are extremely brittle PCV breather hoses. If you blindly yank the cover off its rubber mounts, you will snap these hoses. Lift gently, reach underneath, and disconnect the breathers first. Furthermore, never touch the exposed element of the MAF sensor with your bare hands, as the oils on your skin will ruin it and throw a check engine light.

Phase 1: Removing the Factory Part

  1. Disconnect the Battery: Always start by disconnecting the negative battery terminal on your 1998-2002 Mercedes Benz M-Class 3.2L using a 10mm wrench to prevent check engine lights and electrical shorts.
  2. Unplug the MAF Sensor: Locate the Mass Air Flow (MAF) sensor at the back of the engine cover, near the firewall. Use a flathead screwdriver to gently depress the locking tab on the harness and pull the plug free. Tuck the wiring safely out of the way.
  3. Loosen the Intake Clamps: Take your 8mm nut driver and loosen the hose clamp securing the rear of the factory airbox to the throttle body inlet tube.
  4. Extract the Factory Airbox: Grab the front edges of the large plastic engine cover/airbox. Pull up firmly but carefully to release it from the front rubber grommets. Stop immediately. Reach underneath to disconnect the rubber PCV breather hose. Once detached, lift the entire assembly off the remaining rear grommets and remove it from the engine bay.
  5. Remove the MAF Sensor Housing: Using your T25 Torx driver, remove the factory screws holding the MAF sensor into the factory housing. Slide the sensor out smoothly and set it on a clean shop towel.

Phase 2: Installing the Cold Air Intake for Mercedes-Benz ML320 (1998-2003) 3.2L Engine

  1. Transfer the Factory MAF: Insert the MAF sensor into your new aftermarket intake pipe. Secure it down using the supplied hardware and your T25 Torx driver. Ensure the sensor is facing the correct direction for airflow and do not touch the internal wire element.
  2. Mount the Heat Shield: Drop the new metal heat shield into the W163 engine bay where the factory airbox sat. Thread the supplied bolts into the factory mounting locations and tighten them down with your 10mm socket.
  3. Route the New Intake Pipe: Slide the silicone coupler over the throttle body and push the new intake pipe into the coupler. Reattach the factory breather hose to the designated nipple on the side of the new pipe. Use your 8mm nut driver to snug down the clamps on both ends of the silicone coupler.
  4. Install the Filter and Reconnect: Slide the high-flow air filter onto the end of the intake pipe inside the heat shield. Tighten the filter clamp firmly with your 8mm nut driver. Finally, plug the MAF harness back in until you hear a distinct click.
  5. Perform the Adaptation Startup: Reconnect the negative battery terminal and tighten it with your 10mm wrench. Turn the key and start the engine. Do not touch the gas pedal for at least 20 seconds. This allows the ECU to adjust to the increased airflow without triggering a check engine light.

Disclaimer: This is a general guide provided for the 1998-2002 Mercedes Benz M-Class 3.2L. Always refer to your factory service manual for exact torque specifications and safety procedures.

Warranty

All products are backed by our Limited Lifetime Warranty. We stand by our quality. [See terms]
Cold Air Intake for Mercedes-Benz ML320 (1998-2003) 3.2L Engine

$84.99