Maintenance

Why Does My 380SL or 560SL Start in Second Gear?

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Many US 380SL and 560SL owners notice the car seems to pull away gently, almost lazily, from a stop. The reason is usually that the four-speed automatic is starting in second gear, which is how these cars were designed to behave in normal driving.

Illustration for Why Does My 380SL or 560SL Start in Second Gear?
Illustration (not a photo of a specific car)

Is starting in second normal on the 722.3?

On many US-market cars with the four-speed 722.3 automatic, the transmission starts in second gear in Drive under light throttle. It was a fuel economy and smoothness measure. Press the pedal more firmly and it starts in first. The exact behavior depends on year, calibration and adjustment, so treat this as a general rule and verify against the manual for your car.

How to get first-gear starts

  • Press the accelerator more firmly from a stop. On many cars, a bit more throttle brings first gear.
  • Select “2” (or “S” or “3” on some selectors) to start in first, then move to “D” once moving. Check your owner’s manual for your selector’s positions.
  • On cars with an S/E switch (mostly European), “S” starts in first.

When it is a fault

It may be a fault if:

  • The car always starts in second even at heavy throttle
  • It never shifts out of first or second
  • The shift is accompanied by slipping or flaring

Common causes are a misadjusted Bowden cable, a vacuum leak at the modulator, low fluid, or a problem in the valve body. See shifting hard or late.

The shifting into 2 then D trick

When pulling away on a steep hill or with a load, select 2 to start in first, then move to D. It is harmless if done at low speed. Never shift into a low gear at high speed.

Quick answers

  • Is it bad for the transmission? Starting in second is normal design, not wear.
  • Why does my 450SL not do this? The 450SL uses a three-speed transmission with different logic.
  • Will a transmission service change it? No, the behavior comes from design and adjustment.
  • Does the Euro 500SL behave the same? Euro cars often have different calibration and sometimes an S/E switch, so behavior differs.
  • Does the 560SL start in second too? Behavior depends on calibration and adjustment; firm throttle should give first gear.

A little transparency

Owner guides & safety

Guides are general owner notes from Arthur's R107 experience, not a substitute for a qualified mechanic or a pre-purchase inspection on your car. Always confirm part numbers and fitment for your chassis before you buy.

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