Au7o mascotAu7o
Known IssuesTest Hub demo
  1. Au7o
  2. /
  3. Known Issues
  4. /
  5. Infiniti
  6. /
  7. G35
Infiniti · Known Issues

2003 Infiniti G35 Problems: 7 Known Issues

2003 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

Share:@au7o.io

2003 · All trims · All engines

Choose the year and equipment for your written issues and visual request.

No email neededHow interest is saved

Interest applies to the selected vehicle and configuration; it is not a reservation. Voting stores a first-party identifier for up to 180 days to prevent repeat votes. No account or email is needed. Clearing cookies or using another device may count separately. Privacy

Visual coming soon

Your interest helps us choose what to build next.

Visual Known Issues · Coming soon

$4.99/month plus taxes at launch · No payment today

Preview the XT6 example
Known IssuesMotorcycle IssuesDTC LookupDrivePricingAboutTermsPrivacyCookiesConsentData rightsCopyrightFeedback
Share:@au7o.io

Vehicle data and repair guidance on this site are compiled with AI assistance and may contain errors. Always verify with your service manual or a qualified mechanic.

Data protection representation

DataRep representative in the United KingdomDataRep representative in the European Union
Au7o · 2026
Built for DIY mechanics. Privacy-first.
Explore free Hub demo
Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2003 Infiniti G35 has 7 documented known issues, with 4 rated critical. The most serious are Crank and Cam Position Sensor Solder Failure Causing Stall and No-Start (Recall 03V455000) ($0-$600 repair), Fuel Pump Outlet Hose Improperly Attached Causing Stall and Fire Risk (Recall 02V245000) ($0-$0 repair), Steering Wheel Lock Malfunction ($300-$900 repair) and Fuel Filler Hose Cracking Causing Fuel Leak While Refueling (Recall 05V555000) ($0-$450 repair). Across all issues with published estimates, repair costs range from $150 to $3,000. DIY maintenance guides at au7o.io.

In This Article

  • G35 Fuel System2
  • G35 Engine2
  • G35 Steering1
  • G35 Body/Panels1
  • G35 Electrical1
  • Recalls6
  • FAQ
Get Started
Back to top

In This Article

  • Fuel System2
  • Engine2
  • Steering1
  • Body/Panels1
  • Electrical1
  • Recalls6
  • FAQ

All 7 Known Issues

Filter:
ALL YEARS200820072006200520042003

On the 2003 Infiniti G35, on early-build cars the fuel hose connection at the outlet of the fuel pump, on top of the fuel tank, may not have been properly seated during assembly. The connection can work loose while driving or during a start attempt. If it separates while driving the engine stops from fuel starvation; in either case fuel discharges from the pump outlet inside the tank cavity, and with an external ignition source present that becomes a fire. NHTSA campaign 02V245000 covers the defect, with owner notification beginning October 7, 2002.

Common Symptoms

  • Engine stalls suddenly from fuel starvation
  • Raw fuel smell near the rear seat or trunk
  • Extended cranking or failure to start
  • Loss of fuel pressure at the rail

How to Fix

Have the dealer inspect and correctly attach the fuel hose to the fuel pump under recall 02V245000, free of charge. On a car this old the recall was almost certainly performed, but verify by VIN rather than assume — and if the fuel pump or sending unit has been replaced since by an independent shop, the same connection is worth re-checking, because it is easy to leave incompletely seated. A raw fuel smell around the rear seat or trunk with no external leak points directly at this connection.

Find a Infiniti dealer

Choose to share your location for this search, or enter an area below. Your search location is sent to Google to find dealers.

Open Infiniti dealer map in Google Maps ↗

Call to confirm they service Infiniti vehicles and check your VIN, recall eligibility, parts availability, and appointment options.

Typical repair cost:$0 - $0

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
High ConfidenceVerifiedReviewed Aug 2026

On the 2003-2006 Infiniti G35, the rubber fuel filler hose that runs from the filler neck to the tank can crack with age and exposure, letting raw fuel escape during refueling. Because the leak occurs at the pump with the nozzle running, any ignition source nearby creates a fire risk. NHTSA campaign 05V555000 covers the defect across a group of Nissan and Infiniti passenger cars and SUVs; the Infiniti portion of the recall began March 13, 2006.

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

Common Symptoms

  • Strong fuel smell while refueling
  • Fuel visible on the ground during fill-up
  • Fuel pump nozzle clicks off repeatedly before the tank is full
  • Fuel stains on the underbody near the filler neck
  • Check engine light with EVAP leak codes

How to Fix

Have the dealer replace the fuel filler hose under recall 05V555000, free of charge. Independent of the recall, a strong fuel smell during or right after refueling, fuel visible on the ground behind the right rear wheel while filling, or a pump that repeatedly clicks off before the tank is full all point to the filler hose or the vent hose alongside it. Do not keep refueling a car that leaks at the pump. A persistent fuel odor with no visible leak and an EVAP code is a different fault — usually the vent or purge valve — so confirm which one you have before ordering parts.

Find a Infiniti dealer

Choose to share your location for this search, or enter an area below. Your search location is sent to Google to find dealers.

Open Infiniti dealer map in Google Maps ↗

Call to confirm they service Infiniti vehicles and check your VIN, recall eligibility, parts availability, and appointment options.

Typical repair cost:$0 - $450

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
High ConfidenceVerifiedReviewed Aug 2026

On the 2003-2004 Infiniti G35 VQ35DE, the circuit boards inside the crankshaft and camshaft position sensors were built with improper solder joints — flux residue left during manufacturing accelerated heat-stress deformation of the solder. As the joint degrades the sensor signal drops out, most often once the engine bay is hot. The result is a Service Engine Soon light, a no-start, reduced engine power, or the engine simply cutting out without warning while driving. NHTSA campaign 03V455000 covers the defect and explicitly supersedes the earlier 01V357 campaign, because the replacement sensors installed under that first recall were themselves affected. Owner notification began December 22, 2003.

This issue also affects: Infiniti FX35, Infiniti FX45, Infiniti G37

Common Symptoms

  • Engine cranks but will not start when hot, starts fine when cool
  • Engine stalls without warning while driving
  • Service Engine Soon light with crank or cam sensor codes
  • Reduced engine power or limp mode
  • Intermittent rough running that worsens with heat

How to Fix

Verify with Infiniti by VIN that 03V455000 was performed, not merely the earlier 01V357 — cars repaired under the first campaign received defective replacement parts and need the work done again. Dealers replace the crank position sensor, camshaft position sensor(s), and in some cases the variable timing control sensors. On a car well past the recall window, the classic signature is a hot-restart failure: the engine cranks but will not fire after a short stop on a warm day, then starts fine once it cools. Do not throw a fuel pump at that symptom before testing the crank sensor signal — this is the single most common cause of the complaint on this engine.

Typical repair cost:$0 - $600

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
High ConfidenceVerifiedReviewed Aug 2026

On the 2003-2007 Infiniti G35, the VQ35DE engine in the G35 is known to consume excessive oil, sometimes burning 1 quart every 1,000-2,000 miles. This is typically caused by worn valve stem seals and piston rings that allow oil to enter the combustion chamber.

This issue also affects: Infiniti FX35, Nissan 350Z, Nissan Altima

Common Symptoms

  • Blue/white smoke from exhaust on startup
  • Low oil level warnings between changes
  • Fouled spark plugs

How to Fix

Replace valve stem seals and inspect piston rings. In severe cases, a short block replacement may be necessary. Use manufacturer-recommended 5W-30 oil and monitor consumption between changes.

What you need to fix it

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

  • Genuine Infiniti valve-stem seal 13207-84A00
    OEM13207-84A00

    Confirm VIN, engine, seal location and required quantity from the service diagram before ordering; do not buy

    InfinitiPartsDeal
  • OEM 2007 G35 Coupe 6MT standard-size piston-ring set
    OEM12033-JP00A

    Narrow six-piston ring-set branch only after teardown proves rings and measurements accept standard size Fitment/availability: Fits the 2007 Infiniti G35 Coupe with VQ35DE Rev-Up and manual transmission as stated on the product page.

    Z1 Motorsports
  • Mobil 1 Extended Performance 5W-30 full-synthetic motor oil, 5 qt
    OEMMobil 1 Extended Performance 5W-30 — 5 qt

    Correct-viscosity maintenance and top-off supply while monitoring consumption Fitment/availability: Use only where the exact G35 owner manual permits 5W-30 and choose the current API specification. One 5-quart jug may not equal the compl…

    Walmart

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

Typical repair cost:$800 - $3,000

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
High Confidence

On the 2003-2007 Infiniti G35, the electronic steering wheel lock mechanism can malfunction, preventing the car from starting or causing intermittent no-start conditions. The steering lock actuator motor fails internally, triggering a security fault.

This issue also affects: Infiniti G37, Nissan 370Z, Nissan Altima

Common Symptoms

  • Car will not start with key in ignition
  • Steering wheel will not unlock
  • Security light flashing on dashboard

How to Fix

Replace the steering lock actuator or have the dealer reprogram the BCM. Some owners bypass the lock mechanism entirely, though this may affect resale value. A TSB was issued for certain model years.

What you need to fix it

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

  • Genuine Infiniti V35 steering-lock set D8700-CG027
    OEMD8700-CG027

    Exact V35 Intelligent-Key/automatic configuration branch after lock failure is confirmed Fitment/availability: The live 2007 G35 catalog lists D8700-CG027 for specific V35 Coupe/Sedan automatic and equipment combinations.

    InfinitiPartsDeal
  • Genuine Infiniti V36 G35 steering-lock set D8700-JK000
    OEMD8700-JK000

    Confirm VIN and the exact steering-lock/ignition configuration; this is not the 2007 G35 Coupe/V

    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.

Typical repair cost:$300 - $900

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
Medium Confidence

On the 2003-2008 Infiniti G35, the sunroof tray is designed to collect water and route it through four drain tubes running down the A- and C-pillars. Debris packs the drain nipples at the corners of the tray, the tray overflows, and water spills into the headliner and down the pillars into the cabin. Owners find soaked front or rear floor carpet, water dripping from the headliner or map light area, and a persistent musty smell. Because the water tracks down the pillars it reaches wiring and body modules, which is why this shows up as electrical symptoms — including door lock actuators cycling on their own — rather than as an obvious leak. It is the single most common source of interior water intrusion on this chassis.

Common Symptoms

  • Wet or damp carpet in the footwells
  • Water dripping from the headliner or map light area
  • Persistent musty or mildew smell in the cabin
  • Door locks cycling on their own or intermittent electrical faults
  • Water stains on the A-pillar or C-pillar trim
  • Windows fogging that will not clear

How to Fix

Open the sunroof and locate the drain openings at the four corners of the tray. Clear them with low-pressure compressed air or a length of weed-trimmer line worked in gently — never a stiff wire or a drain snake, which punches through the tube and dumps water directly into the pillar, converting a clogged drain into a permanent leak. Pour a small amount of water into the tray and confirm it exits behind each wheel. Fix this before chasing any electrical gremlin on a car with damp carpet, and pull the carpet and padding up to dry them fully, since trapped moisture corrodes the connectors and modules under the seats and in the kick panels. A leak that persists with clear drains is usually a failed sunroof seal or a detached drain tube behind the pillar trim.

Typical repair cost:$0 - $900

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
High ConfidenceVerifiedReviewed Aug 2026

On the 2003-2007 Infiniti G35, the power window regulators in the G35 are prone to failure, causing windows to fall into the door or operate slowly. The plastic guide clips and cable mechanism wear out, especially in hot climates.

This issue also affects: Nissan 350Z, Nissan 370Z

Common Symptoms

  • Window drops into door panel
  • Grinding noise when operating window
  • Window moves slowly or unevenly

How to Fix

Replace the window regulator assembly. Aftermarket regulators are available at lower cost than OEM. The repair involves removing the door panel and disconnecting the window motor.

What you need to fix it

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

  • Genuine Infiniti 80721-AM811 front-left regulator
    OEM80721-AM811

    Do not use for the V35 Sedan or 2007 V36 Sedan, and verify VIN/production date before ordering.

    InfinitiPartsDeal
  • Genuine W0133-1887949 front-right regulator
    OEMGenuine W0133-1887949 / OE 80720-AM811 family

    The 2007 fitment has a production cutoff; verify build date and do not apply to either Sedan generation.

    PartsGeek
  • Genuine Infiniti 80721-CL70B front-left regulator
    OEM80721-CL70B

    2003-2006 G35 Sedan front-left regulator-only branch Fitment/availability: V35 four-door Sedan, driver side; match the superseded OE number and production date. Not for the two-door Coupe or 2007 V36 Sedan, and the motor is a separate di…

    InfinitiPartsDeal
  • Genuine Infiniti 80720-CL70B front-right regulator
    OEM80720-CL70B

    2003-2006 G35 Sedan front-right regulator-only branch Fitment/availability: V35 four-door Sedan, passenger side; replaces 80720-AT30A/CL00A/AR000. Not for the Coupe or 2007 V36 Sedan and does not automatically include a failed motor.

    InfinitiPartsDeal
  • Genuine Infiniti 82721-CM30A rear-left regulator
    OEM82721-CM30A

    Do not mistake catalog references under Coupe diagrams for a Coupe rear door; the physical application is the four-door Sedan. Confirm VIN and diagnose the separate

    InfinitiPartsDeal
  • Used OEM 2003-2006 G35 Sedan rear-right regulator with motor
    OEMGo-Parts 135-58577R / OE 82720-AL500 family

    Inventory is unit-specific; verify 82720-AL500/AL510 interchange and condition be

  • Genuine Infiniti 82721-JK000 rear-left regulator
    OEM82721-JK000

    Confirm whether the separate motor is also faulty and match VIN before ordering.

    InfinitiPartsDeal
  • Genuine Infiniti 82720-JK000 rear-right regulator
    OEM82720-JK000

    Not for the 2007 G35 Coupe/V35; verify the motor, VIN and door position before purchase.

    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.

Typical repair cost:$150 - $400

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
High Confidence
NHTSA Recalls6 recalls

AIR BAGS

NISSAN IS RECALLING 204,361 MY 2007-2008 ALTIMA, ALTIMA HYBRID, 350Z, 350Z ROADSTER, MY 2008 ALTIMA COUPE, ROGUE, MY 2009 MURANO, AND INFINITI MY 2007-2008 G35 SEDAN, MY 2008 G37 COUPE AND EX35 PASSENGER VEHICLES EQUIPPED WITH CONTINENTAL AUTOMOTIVE SYSTEMS' OCCUPANT CLASSIFICATION SYSTEM (OCS) CONTROL UNITS. A VARISTOR IN THE OCS CONTROL UNIT LOCATED IN THE PASSENGER SEAT CUSHION MAY HAVE BEEN MANUFACTURED OUT OF SPECIFICATION. UNDER CERTAIN CONDITIONS, THIS COULD CAUSE AN INTERRUPTION OF SIGNAL BETWEEN THE OCS AND THE AIR BAG CONTROL UNIT (ACU).

Campaign #08V52100007/10/2008

POWER TRAIN:CLUTCH ASSEMBLY

ZF SERVICE IS RECALL CERTAIN CLUTCH KIT ASSEMBLIES, PART NUMBER SX: K70358-01, SHIPPED TO WHOLESALERS AS SERVICE PARTS BETWEEN SEPTEMBER 1, 2010, AND MARCH 8, 2011. THESE SERVICE PARTS ARE INTENDED FOR USE ON MODEL YEAR 2003-2006 NISSAN 350Z AND INFINITI G35 VEHICLES. THE SX: K70358-01 CLUTCH KIT CONTAINS AN OVERSIZED CLUTCH DISC.

Campaign #11E02400024/06/2011

EXTERIOR LIGHTING

CERTAIN AAI MOTORSPORTS COMBINATION LAMPS SOLD AS REPLACEMENT LAMPS FOR USE ON THE ABOVE LIST PASSENGER VEHICLES. COMBINATION LAMPS NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."

🔧
A mechanic who knows YOUR exact car
Answers tuned to your year, make, model & trim — not generic advice. Save your garage so it always has the right context.
Get ahead of Infiniti G35 problems — free
Leave your email and we'll alert you the moment there's a new recall or known issue for your Infiniti G35. Free, no account needed.

Don't see your problem? Describe your symptoms to get a diagnosis, or get a full repair guide.

Other Infiniti Models

Infiniti G3723Infiniti FX3520Infiniti Q5011Infiniti QX508Infiniti QX558Infiniti QX608

Frequently Asked Questions

What are the most common Infiniti G35 problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2003 Infiniti G35 has 7 documented issues. The most frequently reported are: Crank and Cam Position Sensor Solder Failure Causing Stall and No-Start (Recall 03V455000), Fuel Pump Outlet Hose Improperly Attached Causing Stall and Fire Risk (Recall 02V245000), Steering Wheel Lock Malfunction. Of these, 4 are rated critical and should be addressed promptly.

Is the Infiniti G35 reliable?

The 2003 Infiniti G35 has 7 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 4 issues are rated critical: Crank and Cam Position Sensor Solder Failure Causing Stall and No-Start (Recall 03V455000) and Fuel Pump Outlet Hose Improperly Attached Causing Stall and Fire Risk (Recall 02V245000) and Steering Wheel Lock Malfunction and Fuel Filler Hose Cracking Causing Fuel Leak While Refueling (Recall 05V555000). 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 G35 problems?

Repair costs for known Infiniti G35 issues range from $0 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Crank and Cam Position Sensor Solder Failure Causing Stall and No-Start (Recall 03V455000), typically costs $0-$600 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2003-2004 Infiniti G35 Crank and Cam Position Sensor Solder Failure Causing Stall and No-Start (Recall 03V455000)?

The circuit boards inside the crankshaft and camshaft position sensors were built with improper solder joints — flux residue left during manufacturing accelerated heat-stress deformation of the solder. As the joint degrades the sensor signal drops out, most often once the engine… Repairs typically run $0-$600. Severity: high.

What is the 2003 Infiniti G35 Fuel Pump Outlet Hose Improperly Attached Causing Stall and Fire Risk (Recall 02V245000)?

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 #06E06000029/06/2006

FUEL SYSTEM, GASOLINE

ON CERTAIN PASSENGER AND SPORT UTILITY VEHICLES, THE FUEL FILLER HOSE MAY CRACK AND RESULT IN FUEL LEAKAGE FROM THE HOSE WHILE REFUELING.

Campaign #05V55500013/12/2005

AIR BAGS

NISSAN IS RECALLING CERTAIN MODEL YEAR 2005 THROUGH 2007 INFINITI G35 SEDANS MANUFACTURED FROM MARCH 29, 2004 THROUGH AUGUST 25, 2006 AND INFINITI G35 COUPES MANUFACTURED FROM APRIL 1, 2004 THROUGH MAY 30, 2007. THE WIRE HARNESS CONNECTING THE BELT TENSION SENSOR (BTS) AND THE OCCUPANT DETECTION SENSOR (ODS) CONTROL UNIT UNDER THE FRONT PASSENGER SEAT CAN EXPERIENCE RELATIVE MOVEMENT WHICH CAN CAUSE WEAR AND OXIDIZATION OF THE TERMINALS AND MAY CAUSE INTERRUPTION OF THE SIGNAL.

Campaign #10V17500027/04/2010

+ 1 more recalls. Check all on NHTSA.gov

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

On early-build cars the fuel hose connection at the outlet of the fuel pump, on top of the fuel tank, may not have been properly seated during assembly. The connection can work loose while driving or during a start attempt. If it separates while driving the engine stops from fuel… Repairs typically run $0-$0. Severity: high.

What is the 2003-2007 Infiniti G35 Steering Wheel Lock Malfunction?

The electronic steering wheel lock mechanism can malfunction, preventing the car from starting or causing intermittent no-start conditions. The steering lock actuator motor fails internally, triggering a security fault. Repairs typically run $300-$900. Severity: high.

What is the 2003-2006 Infiniti G35 Fuel Filler Hose Cracking Causing Fuel Leak While Refueling (Recall 05V555000)?

The rubber fuel filler hose that runs from the filler neck to the tank can crack with age and exposure, letting raw fuel escape during refueling. Because the leak occurs at the pump with the nozzle running, any ignition source nearby creates a fire risk. NHTSA campaign 05V555000… Repairs typically run $0-$450. Severity: high.

What is the 2003-2007 Infiniti G35 VQ35DE Oil Consumption?

The VQ35DE engine in the G35 is known to consume excessive oil, sometimes burning 1 quart every 1,000-2,000 miles. This is typically caused by worn valve stem seals and piston rings that allow oil to enter the combustion chamber. Repairs typically run $800-$3,000. Severity: medium.

What is the 2003-2008 Infiniti G35 Clogged Sunroof Drains Causing Cabin Water Leaks and Electrical Faults?

The sunroof tray is designed to collect water and route it through four drain tubes running down the A- and C-pillars. Debris packs the drain nipples at the corners of the tray, the tray overflows, and water spills into the headliner and down the pillars into the cabin. Owners fi… Repairs typically run $0-$900. Severity: medium.

What is the 2003-2007 Infiniti G35 Power Window Regulator Failure?

The power window regulators in the G35 are prone to failure, causing windows to fall into the door or operate slowly. The plastic guide clips and cable mechanism wear out, especially in hot climates. Repairs typically run $150-$400. Severity: low.