Acura · Known Issues

2001 Acura MDX Problems: 4 Known Issues

2001 model year · 1,900+ owner reports · Updated August 2026

According to Au7o's analysis of 1,900+ owner reports, the 2001 Acura MDX has 4 documented known issues, with 3 rated critical. The most serious are Timing Belt Tensioner and Water Pump Failure ($800-$1,500 repair), First-Year 2001 MDX Included in NADI Driver Airbag Inflator Recall (NHTSA 20V026000) and Replacement Driver Air Bag Inflator May Rupture or Underinflate (Recall 20V027000). The most commonly reported issue is Timing Belt Tensioner and Water Pump Failure with 1,900 owner reports. Across all issues with published estimates, repair costs range from $350 to $1,800. DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common Acura MDX problems?

According to Au7o's analysis of 1,900+ owner reports, the 2001 Acura MDX has 4 documented issues. The most frequently reported are: Timing Belt Tensioner and Water Pump Failure, First-Year 2001 MDX Included in NADI Driver Airbag Inflator Recall (NHTSA 20V026000), Replacement Driver Air Bag Inflator May Rupture or Underinflate (Recall 20V027000). Of these, 3 are rated critical and should be addressed promptly.

Is the Acura MDX reliable?

The 2001 Acura MDX has 4 known issues documented across 1,900+ owner reports. 3 issues are rated critical: Timing Belt Tensioner and Water Pump Failure and First-Year 2001 MDX Included in NADI Driver Airbag Inflator Recall (NHTSA 20V026000) and Replacement Driver Air Bag Inflator May Rupture or Underinflate (Recall 20V027000). 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 Acura MDX problems?

Repair costs for known Acura MDX issues range from $350 to $1,800, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Timing Belt Tensioner and Water Pump Failure, typically costs $800-$1,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2001-2006 Acura MDX Timing Belt Tensioner and Water Pump Failure?

First-generation MDX models with the J35 V6 are prone to timing belt tensioner bearing failure and simultaneous water pump leaks when the timing belt service is neglected past 105,000 miles. The hydraulic tensioner loses pressure, allowing the belt to skip teeth and potentially b… Repairs typically run $800-$1,500. Severity: high.

What is the 2001 Acura MDX First-Year 2001 MDX Included in NADI Driver Airbag Inflator Recall (NHTSA 20V026000)?

Only the 2001 model year of the Acura MDX falls under NHTSA recall 20V026000, the Non-Azide Driver airbag Inflator (NADI) campaign. This is a distinct problem from the PSAN-propellant inflator recalls — NADI inflators do not use phase stabilized ammonium nitrate at all. The defec… Severity: high.

What is the 2001-2002 Acura MDX Replacement Driver Air Bag Inflator May Rupture or Underinflate (Recall 20V027000)?

This recall does not apply to every 2001-2002 Acura MDX — it applies to MDXs that received a replacement driver frontal air bag module as part of a vehicle repair. The replacement NADI inflator used in those repairs was built with a manufacturing defect that allows it to absorb m… Severity: high.

What is the 2001-2013 Acura MDX Power Steering High-Pressure Hose Cracking and Rack 'Morning Sickness' — Generation-Specific Fitment?

First- and second-gen MDX power-steering high-pressure hose deteriorates and cracks at the metal-to-rubber crimp, weeping Honda PSF onto the subframe and causing whine, low-fluid warnings, and eventually pump damage. Internally, the rack develops 'morning sickness' - stiff steeri… Repairs typically run $350-$1,800. Severity: medium.

2001 Acura MDX Problems: 4 Known Issues

All 4 Known Issues

2001 Acura MDX: First-Year 2001 MDX Included in NADI Driver Airbag Inflator Recall (NHTSA 20V026000)#

Common Symptoms

How to Fix

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2001-2002 Acura MDX: Replacement Driver Air Bag Inflator May Rupture or Underinflate (Recall 20V027000)#

Common Symptoms

How to Fix

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2001-2006 Acura MDX: Timing Belt Tensioner and Water Pump Failure#

Common Symptoms

How to Fix

What you need to fix it

Owner tips & cautions

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2001-2013 Acura MDX: Power Steering High-Pressure Hose Cracking and Rack 'Morning Sickness' — Generation-Specific Fitment#

Common Symptoms

How to Fix

What you need to fix it

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Other Acura Models

Frequently Asked Questions

What are the most common Acura MDX problems?

Is the Acura MDX reliable?

How much does it cost to fix common Acura MDX problems?

What is the 2001-2006 Acura MDX Timing Belt Tensioner and Water Pump Failure?

What is the 2001 Acura MDX First-Year 2001 MDX Included in NADI Driver Airbag Inflator Recall (NHTSA 20V026000)?

What is the 2001-2002 Acura MDX Replacement Driver Air Bag Inflator May Rupture or Underinflate (Recall 20V027000)?

What is the 2001-2013 Acura MDX Power Steering High-Pressure Hose Cracking and Rack 'Morning Sickness' — Generation-Specific Fitment?