Parts for your 2018 Nissan Serena-Engine mount

2018 Nissan Serena engine mount — what it does and when to replace it

Yes, the 2018 Nissan Serena (C27) uses engine mounts. Technical sources including the Nissan C27 Serena Service Manual (Engine Mechanical — Engine Mounting) and the Nissan Electronic Parts Catalogue (FAST) list multiple engine/transmission mounting insulators and a torque rod for the MR20DD S-HYBRID and the HR12DE e-POWER variants. These mounts secure the power unit and isolate vibration from the cabin.

On this Serena, the engine mounts do two key jobs: they hold the engine and transmission in the right spot under the bonnet, and they soak up the shakes and shudders so the ride stays quiet. During hard take-offs, gear changes, or when lugging the family and gear up a hill, the mounts control how much the engine can twist. Many are hydraulic or fluid-filled to better cancel out idle buzz and mid-range vibration.

As part of regular servicing, it’s smart to have the mounts inspected, especially from around 80,000–150,000 kilometres or sooner if the van does city stop‑start, heavy loads, or lots of hot‑cold cycles. A tech will check for perished rubber, split bonding, collapsed height, or fluid seepage from hydraulic types. They’ll also look for cracked brackets and loose fasteners, then do a simple load test for excessive engine movement when shifting between Drive and Reverse.

Common clues it’s time to replace a mount on a 2018 Serena include:

• Noticeable vibration at idle or through the seats and steering
• Clunks or thuds on take-off, braking, or when shifting
• Excessive engine rock with the bonnet up as Drive/Reverse is engaged
• Driveline shudder or harshness that wasn’t there before

Replacement is straightforward in trained hands, but the engine must be safely supported and mounts torqued at normal ride height. It’s common to replace more than one mount together to keep NVH balanced. Stick with quality parts (genuine or reputable aftermarket) and new fasteners where specified. On e-POWER models, the engine still uses mounts even though it mainly acts as a generator, follow high-voltage lockout procedures before any work.

After new mounts go in, expect a calmer idle and cleaner shifts. A quick road test and a recheck of torque after a short run is good practice. With tidy mounts, the Serena feels tighter, quieter, and more confident on Aussie and Kiwi roads.

Popular questions about 2018 Nissan Serena engine mounts

How do I know if an engine mount is failing on my 2018 Serena?

Look for extra vibration at idle, a thunk when you select Drive or Reverse, or shuddering on take-off. Under the bonnet, a helper can shift between gears while you watch for excessive engine movement. Any fluid leaking from a mount or sagging rubber is a giveaway.

How often should engine mounts be replaced?

There’s no fixed interval. Many last 100,000–150,000 kilometres, but harsh conditions, heat, and stop‑start use can shorten that. Have them checked during major services or whenever you notice new vibrations or knocks.

Is it safe to keep driving with a worn mount?

Short term, maybe, long term, not ideal. A failed mount can stress exhausts, hoses, and CV joints, and it can make the Serena feel rough and unsettled. Book it in promptly to avoid knock-on damage.