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)?
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.
