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Infiniti · Known Issues

2009 Infiniti M35 Problems: 6 Known Issues

2009 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2009 Infiniti M35 has 6 documented known issues, with 1 rated critical. The most serious is Radiator Cracking and Coolant Leaks ($350-$900 repair). Across all issues with published estimates, repair costs range from $180 to $2,200. DIY maintenance guides at au7o.io.

In This Article

  • M35 Cooling1
  • M35 Suspension1
  • M35 Brakes1
  • M35 Engine1
  • M35 Interior1
  • M35 Fuel System1
  • Recalls7
  • FAQ
Get Started
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In This Article

  • Cooling1
  • Suspension1
  • Brakes1
  • Engine1
  • Interior1
  • Fuel System1
  • Recalls7
  • FAQ

All 6 Known Issues

Filter:
ALL YEARS20102009200820072006

On the 2006-2010 Infiniti M35, aging M35 radiators can develop cracks at the plastic end tanks or seams, leading to coolant loss and overheating risk. The issue is usually age-related thermal cycling rather than a single defect, and it becomes more common on higher-mileage cars.

Common Symptoms

  • Sweet coolant smell after driving
  • Low coolant level in reservoir
  • Visible coolant leak near radiator
  • Engine temperature running high
  • White residue around radiator seams

How to Fix

Pressure-test the cooling system and inspect the radiator end tanks, hose necks, and seams for seepage or dried coolant residue. Repair generally means replacing the radiator, refreshing upper and lower hoses if brittle, and refilling with the correct coolant while bleeding air from the system. If overheating occurred, the thermostat should also be checked or replaced as preventive maintenance.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • DENSO 221-3427 radiator
    OEMDENSO 221-3427

    2006-2008 M35 3.5L V6 radiator branch Fitment/availability: Fits the listed 2006-2008 M35 3.5L V6 application and includes the transmission-oil cooler. Confirm engine/year, hose necks and cooler-line configuration; not the 2009-2010 221-…

    PartsGeek
  • DENSO 221-3428 radiator
    OEMDENSO 221-3428

    Confirm exact engine/VIN and connection layout; not the 2006-2008 221-3427 branch.

    FinditParts

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Owner tips & cautions

  • TipReplace the radiator cap and inspect hoses during the same job to avoid chasing another cooling leak later.
  • TipDo not continue driving if the temperature gauge rises, because the VQ engine can suffer expensive overheating damage.
Typical repair cost:$350 - $900

Research This Issue

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Community Reported
Medium Confidence

On the 2006-2010 Infiniti M35, the M35 commonly develops wear in the front lower control arms, tension rod bushings, and related suspension joints, especially as mileage climbs. This causes looseness in the front suspension, uneven tire wear, and clunking over bumps or during braking.

This issue also affects: Infiniti FX35, Infiniti M56

Common Symptoms

  • Clunking or knocking from front suspension
  • Steering wander at highway speeds
  • Uneven front tire wear
  • Shimmy during braking
  • Loose or unstable front-end feel

How to Fix

Inspect the front suspension for torn bushings, leaking hydraulic bushings, and play in the ball joints or control arms. Repair usually involves replacing the affected lower control arms and/or tension rods, followed by a four-wheel alignment. Aftermarket complete arm assemblies are popular because they save labor compared with pressing bushings separately.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Beck/Arnley 102-7720 front lower control arm and ball-joint assembly
    OEMBeck/Arnley 102-7720

    Confirm RWD, driver side, engine/year and VIN; not for M35x/AWD.

    PartsGeek
  • Beck/Arnley 102-7721 front lower control arm and ball-joint assembly
    OEMBeck/Arnley 102-7721

    RWD passenger-side lower-arm branch Fitment/availability: The loaded product is guaranteed for 2006 M35 3.5L RWD, front passenger lower, and the 102-7721 application continues in the M35 RWD catalog. Re-select the exact year before order…

    CarParts.com
  • Genuine Infiniti 54501-EJ72A AWD front lower control arm
    OEM54501-EJ72A

    Confirm M35x/AWD, side, production date and VIN; the earliest 2006 branch must be resolved by VIN because the catalog does not show this current SKU across the whol

    InfinitiPartsDeal
  • Genuine Infiniti 54500-EJ72A AWD front lower control arm
    OEM54500-EJ72A

    Confirm M35x/AWD, side, production date and VIN; do not use for RWD or assume 2006 compatibility without a VIN lookup.

    InfinitiPartsDeal
  • Genuine Infiniti radius rod 55110-EG000
    OEM55110-EG000

    Confirmed radius-rod/tension-bushing branch Fitment/availability: Fits listed 2006-2010 M35 and requires quantity two when both sides are being renewed. Buy only after its bushing or rod is proven worn; confirm VIN and whether one or bot…

    InfinitiPartsDeal

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Owner tips & cautions

  • TipReplace worn tension rods at the same time if braking shimmy is present, then get an alignment immediately.
  • TipInspect inner tire wear before buying tires, since suspension bushing wear often causes rapid edge wear.
Typical repair cost:$450 - $1,200

Research This Issue

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Community Reported
High Confidence

On the 2006-2010 Infiniti M35, infiniti service bulletin ITB00-024I applies to all Infiniti vehicles and defines brake judder as vibration felt through the vehicle, steering wheel or brake pedal while braking. The bulletin identifies rotor thickness variation and/or rotor runout as the cause; brake-pedal pulsation and, in severe cases, steering-wheel oscillation can result.

This issue also affects: Infiniti FX35, Infiniti M37, Nissan Sentra

Common Symptoms

  • Vehicle vibration while braking
  • Brake-pedal pulsation
  • Steering-wheel oscillation while braking

How to Fix

Verify the condition with the driver and a road test. Infiniti directs technicians to correct brake judder by machining the rotors with an approved on-car brake lathe. If a rotor is replaced, index it to the axle hub for minimum runout, tighten lug nuts evenly with a torque wrench, and burnish serviced brakes as specified in ITB00-024I.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Genuine Infiniti 320 mm front brake rotor
    OEM40206-EG000 / current D0206-ZA500 family

    OE front-rotor replacement branch when machining cannot stay within specification Fitment/availability: Fits listed 2006-2010 M35 applications and resolves through the 40206-EG000/D0206-ZA500 family. Confirm 320 mm diameter and VIN; sold…

    InfinitiPartsDeal
  • DBA Street Series T2 320 mm front rotor
    OEMDBA2308

    Aftermarket 320 mm front-rotor alternative after measurement confirms replacement Fitment/availability: DBA2308 is the 320 mm front-disc branch for 2006-2010 M35. Confirm VIN/caliper/diameter, order two for the axle and pair with compati…

    STILLEN

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Research This Issue

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Manually Verified
High ConfidenceVerifiedReviewed Aug 2026

On the 2006-2010 Infiniti M35, the VQ35DE engine used in the M35 is known for intermittent camshaft and crankshaft position sensor failures. Heat and age can cause the sensors to send erratic signals, leading to hard starting, stalling, limp mode, or a check engine light.

This issue also affects: Infiniti FX45, Infiniti G35, Infiniti G37

Common Symptoms

  • Check engine light
  • Intermittent stalling
  • Extended cranking or no-start
  • Reduced power or limp mode
  • Rough running after warm-up

How to Fix

Scan for stored fault codes and monitor cam/crank synchronization data while checking harness condition near the sensors. Repair typically involves replacing the failed camshaft position sensor(s) and sometimes the crankshaft position sensor with quality parts, then clearing codes and confirming proper restart behavior. Using OEM-supplier sensors is strongly preferred because cheap sensors often cause repeat failures.

What you need to diagnose it

The repair instructions explicitly call for reading stored codes. Use a scanner that can read the named code families before choosing a repair.The recommended scanner supports these code families; confirm your exact year, model and module coverage before buying.

  • ANCEL AD310 Classic OBD-II Scanner

    Read & clear engine (P) codes

    $20–$40View

As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.

Reading and clearing the code is DIY work. Module replacement or reprogramming is not — most modules are VIN-programmed, so a new one does nothing until a shop codes it to your car. Check for an open recall or service bulletin before buying anything.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Walker Products 235-1150 position sensor
    OEMWalker Products 235-1150

    Existing VQ35DE crank-position-sensor branch after exact OE cross and circuit diagnosis Fitment/availability: ShowMeTheParts research attached to the existing link matched Walker 235-1150 by M35 year/engine.

    eBay
  • Genuine Infiniti VQ35DE driver-side camshaft position sensor
    OEM23731-AL61D

    Confirm model year, VQ35DE, side and VIN; do not use as the passenger-side sensor or on the VQ35HR.

    InfinitiPartsDeal
  • Genuine Infiniti VQ35DE passenger-side camshaft position sensor
    OEM23731-6J90D

    Confirm VIN/side and do not substitute the driver-side AL61D or VQ35HR sensor.

    InfinitiPartsDeal
  • OEM 2009-2010 M35 VQ35HR camshaft position sensor
    OEM23731-JA11B superseding 23731-JA11A

    VQ35HR cam-sensor branch after identifying the failed sensor position Fitment/availability: Fits 2009-2010 M35 VQ35HR; four are used and sold individually.

    Z1 Motorsports
  • OEM 2009-2010 M35 VQ35HR crankshaft position sensor
    OEM23731-JA10C

    VQ35HR crank-sensor branch after P0335/signal diagnosis Fitment/availability: Fits 2009-2010 M35 VQ35HR and mounts at the passenger-side engine/transmission junction.

    Z1 Motorsports

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Owner tips & cautions

  • TipIf one cam sensor fails, many owners replace both cam sensors and the crank sensor together to avoid repeat breakdowns.
  • TipClear codes only after confirming battery voltage is healthy, since weak voltage can complicate diagnosis.
Typical repair cost:$180 - $450

Research This Issue

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Community Reported
High Confidence

On the 2006-2010 Infiniti M35, owners of 2006-2010 Infiniti M35 models frequently report the upper dashboard becoming sticky, shiny, cracked, or melting when exposed to heat and sunlight. The problem is tied to deterioration of the dash pad material, which can create glare on the windshield and worsen over time in hot climates.

Common Symptoms

  • Sticky or tacky dashboard surface
  • Cracks forming near vents or instrument panel
  • Shiny melted appearance in hot weather
  • Windshield glare from dashboard reflection

How to Fix

Diagnosis is visual: inspect the dash surface for tackiness, warping, cracks, and reflected glare. Repair usually requires replacement of the dashboard pad or full upper dash assembly, as cleaning products do not permanently fix the material breakdown. Used parts may reduce cost, but many owners prefer a new OEM-style replacement due to fit and appearance concerns; labor is substantial because the dash must be removed.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Custom-fit 2006-2010 Infiniti M35 dashboard cover
    OEMCoverking custom-fit M35 dash-cover configuration

    The page is preselected to 2006 M35 and provides the M35 year selector through 2010; confirm airbag, def

Owner tips & cautions

  • TipUse a windshield sunshade and park out of direct sun to slow further deterioration.
  • TipAvoid silicone-heavy dressings because they can increase glare and may worsen the sticky feel.
Typical repair cost:$900 - $2,200

Research This Issue

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Community Reported
High Confidence

On the 2006-2010 Infiniti M35, some M35 owners report inaccurate fuel level readings, including gauges that stick, read empty when fuel remains, or fluctuate unexpectedly. The issue is commonly related to wear or contamination in the fuel level sending unit inside the tank, which can affect trip planning and trigger low-fuel warnings incorrectly.

This issue also affects: Nissan Pathfinder, Nissan Xterra, Infiniti FX35

Common Symptoms

  • Fuel gauge reads empty with fuel in tank
  • Erratic fuel level movement
  • Low fuel warning comes on too early
  • Inaccurate distance-to-empty estimate

How to Fix

Compare gauge behavior to actual fill volume and scan for fuel level sensor data if available. Repair typically requires replacement of the faulty fuel level sending unit or pump module assembly, depending on which side of the saddle tank is affected. Because tank access is labor-intensive, many owners replace related seals and inspect the pump assembly at the same time.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • OEM early M35/M45 driver-side fuel-level sending unit
    OEM25060-AL51A family

    Confirm VIN/engine and failed side; not the passenger sender.

    Z1 Motorsports
  • OEM late M35/M45 driver-side fuel-level sending unit
    OEM25060-1NC0C

    Confirm VIN and failed side; do not substitute the early sender.

  • Genuine Infiniti passenger-side fuel-level sensor 25060-CD00A
    OEM25060-CD00A

    Early passenger-side sender branch after testing identifies that side Fitment/availability: Select 25060-CD00A, listed as passenger side for 2006-2009 M35 applications in the early engine catalog. Confirm VIN/engine because the listing d…

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Owner tips & cautions

  • TipTrack mileage manually until the repair is completed, since the gauge may not be trustworthy.
  • TipIf the tank is being opened, replace the seal and inspect wiring connectors to prevent future access-related leaks or faults.
Typical repair cost:$350 - $900

Research This Issue

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Community Reported
Medium Confidence
NHTSA Recalls7 recalls

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Nissan North America, Inc. (Nissan) is recalling certain 2001-2003 Maxima, 2002-2006 Sentra, 2002-2004 Pathfinder, 2007-2011 Versa Sedan and Versa Hatchback, 2001-2004 Infiniti I30 and I35, 2002-2003 Inifiniti QX4, 2003-2008 Infiniti FX35 and FX45 and 2006-2010 M35 and M45 vehicles. The vehicles are equipped with non-desiccated, frontal passenger air bag inflators containing phase stabilized ammonium nitrate (PSAN) propellant that were used as interim remedy parts for previous Takata recalls. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.

Campaign #20V00800009/01/2020

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Nissan North America, Inc. (Nissan) is recalling certain 2012 Nissan Versa hatchbacks originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan) and the U.S. Virgin Islands, or "Zone A". Additionally, if not included in "Zone A" above, Nissan is recalling certain 2009-2010 Infiniti M35 and M45 and 2009 Nissan Versa sedans and hatchbacks originally sold, or ever registered, in Arizona, Arkansas, Delaware, the District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B". Additionally, if not included in "Zone A" or "Zone B" above, Nissan is recalling certain 2005-2008 Infiniti FX35 and FX45, 2006-2010 Infiniti M35 and M45, and 2007-2008 Nissan Versa vehicles originally sold, or ever registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.

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Frequently Asked Questions

What are the most common Infiniti M35 problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2009 Infiniti M35 has 6 documented issues. The most frequently reported are: Radiator Cracking and Coolant Leaks, Front Lower Control Arm and Bushing Wear, Brake Rotor Warping and Front Brake Vibration. Of these, 1 is rated critical and should be addressed promptly.

Is the Infiniti M35 reliable?

The 2009 Infiniti M35 has 6 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: Radiator Cracking and Coolant Leaks. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Infiniti M35 problems?

Repair costs for known Infiniti M35 issues range from $180 to $2,200, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Radiator Cracking and Coolant Leaks, typically costs $350-$900 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2006-2010 Infiniti M35 Radiator Cracking and Coolant Leaks?

Aging M35 radiators can develop cracks at the plastic end tanks or seams, leading to coolant loss and overheating risk. The issue is usually age-related thermal cycling rather than a single defect, and it becomes more common on higher-mileage cars. Repairs typically run $350-$900. Severity: high.

What is the 2006-2010 Infiniti M35 Front Lower Control Arm and Bushing Wear?

The M35 commonly develops wear in the front lower control arms, tension rod bushings, and related suspension joints, especially as mileage climbs. This causes looseness in the front suspension, uneven tire wear, and clunking over bumps or during braking. Repairs typically run $450-$1,200. Severity: medium.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.

Campaign #17V02800010/01/2017

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Nissan North America, Inc. (Nissan) is recalling certain model year 2003-2008 Infiniti FX35 and FX45, 2003-2004 Infiniti I35, 2006-2010 Infiniti M35 and M45, and 2007-2011 Nissan Versa vehicles, originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands, or "Zone A." Additionally, unless included in "Zone A" above, Nissan is recalling certain model year 2005-2008 Infiniti FX35 and FX45, 2003-2004 Infiniti I35, 2006-2008 Infiniti M35 and M45, and 2007-2008 Nissan Versa vehicles, originally sold, or ever registered, in Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Lastly, unless included in "Zone A" or "Zone B" above, Nissan is recalling certain model year 2003-2004 Infiniti I35 vehicles originally sold, or registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. These inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.

Campaign #16V34900024/05/2016

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

Nissan North America, Inc. (Nissan) is recalling certain model year 2006-2010 Infiniti M35 and M45 vehicles manufactured April 4, 2004, through October 5, 2010. Over time, the accelerator pedal sensor signal may deteriorate resulting in the output of an incorrect signal causing the engine to go into fail-safe (limp home) mode.

Campaign #13V43000026/09/2013

AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE

Nissan North America, Inc. (Nissan) is recalling certain air bag inflator replacement service parts that may have been installed as part of a theft or collision repair. The parts include certain passenger-side air bag inflators designed to fit Infiniti 2002-2003 QX4, 2006-2010 M35 and M45; Nissan 2001-2003 Maxima, 2002-2006 Sentra, and both driver and passenger-side inflators designed to fit 2007-2012 Versa Sedan and Versa Hatchback vehicles. Please see Nissan's recall report for the specific part numbers. These replacement inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.

Campaign #22E06600009/08/2022

+ 2 more recalls. Check all on NHTSA.gov

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

What is the 2006-2010 Infiniti M35 Brake Rotor Warping and Front Brake Vibration?

Infiniti service bulletin ITB00-024I applies to all Infiniti vehicles and defines brake judder as vibration felt through the vehicle, steering wheel or brake pedal while braking. The bulletin identifies rotor thickness variation and/or rotor runout as the cause; brake-pedal pulsa… Severity: medium.

What is the 2006-2010 Infiniti M35 Camshaft and Crankshaft Position Sensor Failure?

The VQ35DE engine used in the M35 is known for intermittent camshaft and crankshaft position sensor failures. Heat and age can cause the sensors to send erratic signals, leading to hard starting, stalling, limp mode, or a check engine light. Repairs typically run $180-$450. Severity: medium.

What is the 2006-2010 Infiniti M35 Dashboard Melting and Cracking?

Owners of 2006-2010 Infiniti M35 models frequently report the upper dashboard becoming sticky, shiny, cracked, or melting when exposed to heat and sunlight. The problem is tied to deterioration of the dash pad material, which can create glare on the windshield and worsen over tim… Repairs typically run $900-$2,200. Severity: medium.

What is the 2006-2010 Infiniti M35 Fuel Gauge Sending Unit Failure?

Some M35 owners report inaccurate fuel level readings, including gauges that stick, read empty when fuel remains, or fluctuate unexpectedly. The issue is commonly related to wear or contamination in the fuel level sending unit inside the tank, which can affect trip planning and t… Repairs typically run $350-$900. Severity: medium.