Intake Manifold Air Flap Runner Repair Part for Compatible with Mercedes Benz M272 M273 OEM A2721402401
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Mercedes-Benz Intake Manifold Air Flap Runner Repair Part for Compatible with Mercedes Benz M2，OEM: A2721402401
Product Application & Use Cases
This OEM A2721402401 is engineered for the following applications:
🌬️ Engine Air Intake Performance
- Restores factory air flow to the engine
- Improves throttle response and acceleration
- Replaces cracked or leaking intake manifold
- Reduces air leaks that trigger check engine lights
🔧 Repair & Replacement
- Fixing intake manifold gasket leaks
- Resolving rough idle and stalling issues
- Repairing P0171/P0174 lean code triggers
- Restoring factory performance after engine work
🚗 Common Failure Symptoms
- Rough idle or stalling at stop lights
- Reduced fuel economy
- Check engine light related to lean condition
- Vacuum leaks causing high RPM at idle
🌍 Target Markets
- Auto parts distributors and wholesalers
- Independent repair shops and garages
- Engine rebuild specialists
- Dealership service departments
⚠️ Symptoms of a Failing Intake Manifold
If you notice any of the following, the intake manifold or related component may need replacement:
- Rough idle or engine misfires, especially at low RPM
- Check engine light with codes P0171, P0174, or P0101
- Reduced fuel economy compared to normal
- Hissing or whistling sound from the engine bay (vacuum leak)
- Stalling or hesitation during acceleration
- Visible cracks or damage on the intake manifold
- Oil residue or carbon deposits around the intake ports
Ignoring intake manifold issues can lead to poor fuel economy, increased emissions, catalytic converter damage, and eventual engine performance loss. Replace promptly to restore factory performance.
Installation Guide
Installing this A2721402401 is a straightforward process. The full job takes about 90-150 minutes.
Disconnect the battery and relieve fuel pressure
Disconnect the negative battery terminal. For fuel-injected engines, relieve fuel pressure by removing the fuel pump fuse and running the engine until it stalls.
Remove engine cover and air intake components
Remove the engine cover and air filter housing to access the intake manifold. Disconnect the mass airflow (MAF) sensor connector if applicable.
Disconnect vacuum lines and electrical connectors
Label and disconnect all vacuum hoses, electrical connectors, and coolant lines (if applicable) connected to the intake manifold. Photograph the configuration for reassembly.
Remove the intake manifold mounting bolts
Remove the bolts securing the intake manifold to the cylinder head in a reverse pattern (outside-in) to prevent warping. Keep bolts organized by position.
Lift off the old intake manifold
Carefully lift the intake manifold off the cylinder head. Remove the old gasket and clean the mounting surfaces on both the manifold and head with a plastic scraper.
Install new gaskets and the new intake manifold
Install new gaskets on the cylinder head. Place the new intake manifold in position. Tighten the mounting bolts in a star pattern to manufacturer torque specification, in multiple stages. Reconnect all vacuum lines, electrical connectors, and reassemble components in reverse order.
Frequently Asked Questions (FAQ)
How to Order (Wholesale Process)
- Send us an email with the OEM number (A2721402401), quantity needed, and destination country.
- We reply with a wholesale price quote and shipping options within 24 hours.
- Confirm the order, pay the deposit (T/T, L/C, PayPal, or Western Union).
- We prepare the goods, conduct quality inspection, and ship within 7-15 days.
- You receive tracking info and the goods arrive at your destination port in 20-35 days (sea) or 5-10 days (air).
Wholesale Business Information
- MOQ: 5 Pieces (mixed models accepted)
- Payment Terms: T/T, L/C, Western Union, PayPal accepted
- Price Terms: FOB Guangzhou / CIF your port / EXW
- Sample Policy: Available for quality testing (fee refundable on order)
- Lead Time: 7-15 days for stock items, 30 days for bulk production
- Quality Guarantee: OEM equivalent quality with 12-month warranty
- Customization: OEM/ODM service available for bulk orders
- Packaging: Neutral packaging or custom branded packaging available
Shipping & Logistics Options
We offer flexible shipping methods to meet your timeline and budget requirements:
🚢 Sea Freight
Most economical for bulk orders
20-35 days transit time
FCL / LCL both available
✈️ Air Freight
Faster delivery option
5-10 days transit time
Best for urgent orders
📦 Express (DHL/FedEx)
Fastest delivery worldwide
3-7 days door-to-door
Best for samples & small orders
About Guangzhou Carval Auto Parts Co., Ltd.
Founded in 2008, Guangzhou Carval Auto Parts Co., Ltd. is a professional wholesale supplier of OEM-quality auto parts serving customers in over 80 countries worldwide. With 16+ years of industry experience, we specialize in providing comprehensive auto parts solutions for Japanese, Korean, German, and Chinese vehicles, including body parts, engine components, electrical parts, lubricants, and aftermarket accessories.
Our 80+ member team operates from a 5,000 sqm facility in Guangzhou, China, maintaining extensive inventory of 10,000+ SKU items. We serve auto parts distributors, dealership parts departments, repair shops, and e-commerce platforms globally, offering competitive pricing, reliable quality, and professional export services including multilingual support, custom packaging, and flexible shipping arrangements.
🏢 Company Facilities & Gallery
Guangzhou Carval Auto Parts Co., Ltd. operates from a 5,000 sqm facility with offices, repair shops, and warehouses. Here are some photos of our facilities:
