Parts for your 2012 Holden Barina-Exhaust mount

2012 Holden Barina exhaust-mount: what it does, why it matters, and when to replace it

The 2012 Holden Barina (TM series) absolutely uses exhaust mounts (also called rubber insulators or hangers). GM/Holden service information for the Barina/Sonic exhaust removal and installation procedures specifies supporting the exhaust and slipping it out of the rubber insulators before refitting, and the Holden/GM parts catalogues list dedicated exhaust hanger insulators for this model. Major aftermarket catalogues in Australia and New Zealand also list replacement exhaust mounts for 2011–2016 Barina TM, confirming they’re a normal, serviceable item.

On this Barina, the exhaust mounts are small but important rubber pieces that suspend the exhaust system from the body. Their job is to isolate engine and road vibration, hold the pipework at the correct height and angle, and keep clearance from the bumper, heat shields, and suspension. When those rubbers perish or stretch, the exhaust can droop or shift, causing knocks over bumps, rattles at idle, or vibration that feels like a rough engine.

As part of routine servicing, it’s smart to check the mounts whenever the car’s on a hoist—especially if there’s a new rattle. Look for cracks, splits, shiny wear marks where the exhaust has been touching, or elongated holes in the rubber. Any mount that’s hard like plastic, oil-soaked, or misshapen should go. Replacing tired mounts early protects the flex joint and welds, and helps the muffler last longer.

Replacement is straightforward for a workshop: support the exhaust, lubricate the insulators with silicone spray, slide them off, and refit new ones. It’s often worth doing them in pairs on the same section so the exhaust sits level. After refitting, check clearances to the rear beam, heat shields and bumper, and make sure all brackets are tight. Avoid universal rubbers that don’t match thickness or hole spacing—on the Barina a small dimensional mismatch can let the muffler tap the body under load.

Typical signs it’s time to replace include:

• Thumping or tapping from the rear over bumps
• Rattling at idle that changes when blipping the throttle
• A visibly droopy tailpipe or muffler
• New vibrations after hitting a pothole or kerb

They’re inexpensive parts, and a tech will usually swap a mount in well under an hour. Let the exhaust cool before any DIY checks.

Popular questions about 2012 Holden Barina exhaust-mount

How often should the Barina’s exhaust mounts be replaced?
There’s no set interval, they’re replaced on condition. In Aussie and Kiwi climates, expect 5–10 years as a rough guide. Inspect them at each service and replace at the first sign of cracking, sagging, or if the exhaust has started to rattle.

Is it safe to drive with a broken exhaust mount?
Short trips might be possible, but it’s not ideal. A broken mount can let the exhaust hit the body or suspension, stress the flex joint, or melt nearby trim. If the exhaust drops further, it could drag on the road. Best to get it checked and sorted promptly.

Do I need genuine mounts, or are aftermarket ones fine?
Quality aftermarket mounts that match the Barina TM spec work well. The key is correct fit and durometer (rubber stiffness). Cheap, soft rubbers can sag quickly, overly hard ones can pass vibration into the cabin. A reputable brand or genuine part avoids rework.