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    2.1L inline-4 Turbo Diesel (161 Hp) VS30/W907 (2020-2022) - OM651

    Mercedes-Benz Sprinter W907 2.1L Turbo-Diesel (2020-2022) Platform Guide

    In this Vehicle Platform Guide, you will find the top common issues of Mercedes-Benz Sprinter (VS30/W907, OM651; 2020-2022) 2.1L Inline-4 Turbo-Diesel, along with their fault codes, and the solutions from eEuroparts.com.

    The 2020-2022 Mercedes-Benz Sprinter (VS30/W907, OM651) 2.1L Inline-4 Turbo-Diesel is a robust commercial van powered by a 2.1L turbocharged inline-4 diesel engine, delivering between 120 to 204 horsepower and up to 500 Nm of torque. Paired with an advanced automatic transmission, it ensures smooth power delivery and efficiency. Featuring Mercedes’ OM651 engine technology, it offers strong acceleration, improved fuel economy, and reduced emissions, making it ideal for cargo transport, passenger shuttles, and utility applications.

    Specifications 

    Engine:
    2.1L Turbocharged Inline-4 Diesel
    Engine Code:
    OM651 DE22LA
    Horsepower:
    161 hp @ 3,800 rpm
    Torque:
    266 lb-ft @ 1,400-2,400 rpm
    Fuel Type:
    Diesel
    Transmission:
    7-Speed Automatic (7G-TRONIC PLUS)
    City/Highway Combined:
    ~ 19-24 MPG (varies by configuration and load)
    Curb Weight:
    ~ 5,300 lbs
    Gross Weight:
    ~ 9,050 lbs
    Body Styles:
    cargo van / passenger van
    Seating Capacity:
    12-15 passengers
    Drivetrain Options:
    Rear-Wheel Drive (RWD)
    4x4 All-Wheel Drive (select models)

    Top Common Issues with Mercedes-Benz Sprinter (VS30/W907, OM651; 2020-2022) 2.1L Inline-4 Turbo-Diesel

    ABS Wheel Speed Sensor
    ABS Wheel Speed Sensor

    1. ABS Wheel Speed Sensor Failure

    Fault Codes:

    The C0035 fault code indicates a left front wheel speed sensor circuit issue, while C0041 refers to a right front wheel speed sensor circuit malfunction, both affecting ABS functionality.

    Why it happens:

    ABS wheel speed sensor failure occurs due to contamination, wiring issues, sensor wear, or damage, leading to inaccurate wheel speed readings and ABS malfunction.

    Symptoms:

    • ABS warning light: The ABS system detects a fault and illuminates the dashboard warning light.
    • Pulsating brake pedal: A faulty sensor can cause inconsistent braking, leading to a pulsating or vibrating pedal.
    • Loss of anti-lock braking: The ABS system may become inoperative, increasing the risk of wheel lock-up.
    • Traction control issues: Stability control and traction assist may be disabled due to incorrect wheel speed readings.
    • Speedometer malfunction: In rare cases, a defective sensor can cause speedometer inaccuracies.

    Parts to Replace

    Disc Brake Rotor
    Disc Brake Rotor

    2. Front Brake Rotor Warping

    Why it happens:

    Front brake rotor warping occurs due to excessive heat buildup from hard braking, uneven pad wear, improper installation, or prolonged heavy braking, leading to surface distortion.

    Symptoms:

    • Brake pedal vibration: A pulsating sensation when braking due to uneven rotor surfaces.
    • Steering wheel shaking: Warped front rotors can cause noticeable steering wheel vibrations during braking.
    • Uneven braking: The vehicle may experience inconsistent stopping power or jerky braking.
    • Vehicle pulling to one side: Uneven rotor wear can cause the car to drift left or right when braking.
    • Squealing or grinding noises: Warped rotors may produce unusual sounds due to uneven pad contact.
    • Visible rotor damage: Rotors may show discoloration, grooves, or an inconsistent surface.

    Parts to Replace

    Power Brake Booster Vacuum Sensor
    Power Brake Booster Vacuum Sensor

    3. Power Brake Booster Failure

    Fault Codes:

    The C123F fault code indicates a Steering Angle Sensor comparative performance issue, affecting stability control, while C249F relates to an ABS hydraulic pump failure, impacting braking efficiency.

    Why it happens:

    Power brake booster failure occurs due to vacuum leaks, diaphragm damage, internal seal failure, or contaminated brake fluid, leading to reduced braking assistance and harder pedal feel.

    Symptoms:

    • Hard brake pedal: Increased effort is required to press the brake pedal due to loss of vacuum assist.
    • Longer stopping distance: Reduced braking efficiency leads to extended stopping distances.
    • Hissing noise: A vacuum leak in the booster can cause a noticeable hissing sound when braking.
    • Engine stalling while braking: A severe vacuum leak may disrupt engine performance, causing stalling.
    • Brake warning lights: ABS or brake system warning lights may illuminate due to braking inefficiencies.

    Parts to Replace


    Why eEuroparts.com?

    eEuroparts offers a wide selection of OEM and well-reviewed aftermarket parts chosen for compatibility with Mercedes-Benz vehicles. Parts are listed with fitment details and trusted brand options to help you find components that are appropriate for routine maintenance and common repairs.


    Exceptional Delivery, Unmatched Logistics

    We know that every moment counts when your car is out of commission. That’s why we focus on getting your parts to you as quickly as possible. Our efficient logistics network and fast shipping mean minimal downtime for your vehicle.


    Competitive Prices, Superior Value

    Our catalog includes everything from timing chains, camshaft adjusters, and PCV valves to wheel bearings, control arms, and fuel pumps, sourced to meet or exceed OE standards. Whether you prefer genuine Mercedes-Benz parts or trusted aftermarket brands, we offer top-tier quality at better-than-dealer pricing.


    Trusted Excellence

    Our catalog includes parts from top-tier brands like Bosch, INA, ZF, Pierburg, Elring, Lemforder, and Rein. Whether you're resolving transmission issues, electrical faults, or suspension wear, our parts meet or exceed OEM standards for fit, durability, and performance.


    Conclusion

    Whether you’re replacing worn items or addressing a specific fault, use these listings to identify likely parts and plan repairs. For vehicle-specific advice, consult a trusted technician to confirm fitment and service steps before installation.


    Frequently Asked Questions

    How reliable is the 2.1L OM651 diesel in a 2020–2022 Sprinter?
    The OM651 is generally considered a durable work-grade diesel when serviced on time. Most long-term issues come from neglected oil changes, fuel quality, or emissions system upkeep.
    What are the most common problems on OM651 Sprinters?
    Owners most often report DPF/DEF (emissions) warnings, EGR valve clogging, boost leaks from charge pipes, and occasional fuel system sensitivity if low-quality diesel is used.
    How often should I change oil and fuel filters on the OM651 Sprinter?                 
    Diesel Sprinters typically follow Service A/B about every 20,000 miles or 1 year, and fuel filters are usually due every 20,000 miles or 1 year depending on driving conditions. Always follow the ASSYST/cluster reminder for your van.
    Why does my Sprinter show DPF or DEF warnings, and what should I do first?
    These warnings usually mean the system isn’t completing regen cycles (short trips, heavy idling) or there’s a sensor/DEF quality issue. First step: check for stored fault codes and drive long enough for a full regen before replacing parts.
    What’s the best way to keep the OM651 emissions system healthy?                 
    Use proper low-ash diesel oil, good-quality diesel fuel, keep DEF fresh, avoid constant short trips, and let regens finish. Regular highway runs help prevent soot buildup in the DPF and EGR system.

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