Parts for your 2015 Nissan Serena-Exhaust mount

2015 Nissan Serena Exhaust Mounts: What They Do and How to Look After Them

Per the Nissan Serena C26 workshop manual (Exhaust System – EX section) and the Nissan FAST electronic parts catalogue for C26 models, the 2015 Nissan Serena is fitted with exhaust mounting insulators (“exhaust mounts” or “hangers”). These are the rubber isolators and brackets that suspend the front pipe, centre muffler and rear muffler from the body, controlling movement and keeping vibration and noise in check. So yes—an exhaust-mount is relevant and used on the 2015 Serena.

On this Serena, the exhaust mounts sit between the metal hangers on the exhaust and brackets on the underbody. Their job is to cushion the system from bumps, heat expansion and engine movement, helping the exhaust sit correctly, stay quiet and avoid hitting the subframe or bumper. When they age, the rubber can crack, harden or stretch, which leads to thuds over bumps, rattles at idle and a tailpipe that looks off-centre.

As part of routine servicing, it’s smart to give the exhaust mounts a quick once-over every 10,000–15,000 km or at each service interval—more often if the Serena sees coastal air, gravel roads or heavy loads. Look for perishing, splits, sagging, or shiny rub marks where the exhaust has touched heat shields or the body.

• Common symptoms: dull knocks over bumps, extra vibration at idle, exhaust sitting low or skewed, visible cracks in the rubber insulators.
• Replacement tips: support the exhaust with a stand, let the system cool fully, apply penetrant to stubborn hangers, and use silicone spray to slip new rubbers on cleanly.

When replacing, choose quality OEM-equivalent rubber insulators. If one mount has failed, consider doing the adjacent ones to keep ride-height and alignment consistent. Refit any brackets and check clearances around the rear bumper and heat shields. Fasteners should be tightened to the specifications in the C26 EX section of the service manual to avoid strain on the system.

Most exhaust-mount swaps are a straightforward driveway job, but a workshop can handle it quickly and check for related issues like cracked welds or loose heat shields. Keeping the Serena’s mounts fresh protects the catalytic converter and mufflers from undue stress and helps the family wagon stay quiet and comfy on Kiwi and Aussie roads.

• How many exhaust mounts does a 2015 Nissan Serena have?
  Most C26 Serenas use several mounts across the system—typically at the front pipe, centre and rear muffler. The exact count varies by variant and market. A parts lookup by VIN in Nissan FAST will confirm your layout.
• Is it safe to drive with a broken exhaust mount?
  It’s not ideal. A failed mount can let the exhaust sag, bang on the underbody, strain flex joints and crack welds. Short trips to a workshop are usually fine if the exhaust is not dragging, but it’s best to repair promptly.
• Do exhaust mounts have a set replacement interval?
  They’re condition-based. In Aussie and NZ conditions, many last 5–10 years, but heat, salt air and oil contamination can shorten life. Inspect at each service and replace at the first signs of cracking, hardening or sagging.