What should the gap be for spark plugs on a 2011 e350 4matic wagon?
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AI Overview

For the 2011 Mercedes-Benz E350 4Matic Wagon (equipped with the 3.5L V6 engine), the recommended spark plug gap is 0.8 mm (or 0.032 inches).

Spark Plug Specifications & TipsOEM Spark Plugs:

The factory-recommended plugs are typically NGK PLKR7A (Part No. 4288) or Bosch YR7MPP33.Pre-Gapped: Most high-quality OEM and iridium/platinum spark plugs come pre-gapped straight from the factory. It is generally advised not to manually adjust the gap on fine-wire platinum or iridium plugs to avoid damaging the brittle electrode. If the gap is incorrect, it is best to return them.

Torque Spec:

When installing new spark plugs, they should be tightened to approximately 16 ft-lbs (20–30 Nm).

Anti-Seize:

Mercedes-Benz recommends installing spark plugs dry; do not use anti-seize lubricant on the threads.

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1990 190E 3.0L

If you have one I'd rely on the gap spec provided in the owners manual and use basic spark plugs like those it had from the factory no upgrades.

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