E90/E82 AST strut & shock Installation Guide

AST 4100 coilovers going onto an E90 BMW 335i Sedan. This same procedure is used on the E82 1 series (128i/135i).

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vorshlag > Welcome to the BMW E90/E82 Installation Gallery.

Here you will find tips and tricks for installing an AST strut/shock kit to your BMW E82 1 seires -or- E90/92 3 series (non-M).

vorshlag > Here are the AST 4100 strut and shock along with optional springs and helpers.

vorshlag > The factory rear springs are a bit tricky to remove. Raise the car on 4 jack stands first.

vorshlag > We placed the stands at the 4 jacking points.

vorshlag > Here we take a look at the rear lower control arm, that has to be partially removed to remove the OEM rear springs.

vorshlag > We then open the cavernous trunk on this 335i Sedan. Those trunk liners are blocking the upper shock mounts...

vorshlag > The trunk interior liners are pulled back to give access to the upper rear shock mount. These upper nuts are easily removed with an impact wrench.

vorshlag > Here is a picture of the factory lower shock mounting on the E82 and E90/92 (excludes E90/92 M3). This pin mount goes through the lower control arm and is held by a nut beneath. Loosen and remove the lower nut but keep the factory rubber mount - it is re-used.

vorshlag > Use a jack to support the lower control arm and remove the lower/outer bolt and nut shown. Then lower the jack - this allows the lower control arm to travel down far enough to remove the preload on the loooooong factory rear spring. It can then be removed.

Welcome to the BMW E90/E82 Installation Gallery.

Here you will find tips and tricks for installing an AST strut/shock kit to your BMW E82 1 seires -or- E90/92 3 series (non-M).

Camera: Nikon (E3200) |

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