Porshe 911 (997). Manual - part 370

Removing lower side member reinforcement

Installation Location:

Installation position of lower side member reinforcement

1. Remove hinge pillar reinforcement. → 516255 21 Replacing hinge pillar reinforcement - section on

"Removing"

2. Remove centre side member. → 514855 Replacing centre side member - section on "Removing" [997310

997311 997320 997321 997610 997611 997620 997621]→ 514855 21 Replacing centre side member -
section on "Removing" [997110 997111 997120 997121 997410 997411 997430 997431]

ATTENTION

Cut on retaining bracket for support tube

→ The cut on the retaining bracket for the support tube can only be at the marked area

A.

→ Position the cut between the openings (holes).

→ The cut must not obstruct the openings (holes).

Determining the cut

Diagnostic system: reading out fault memory and activating systems

Removing lower side member reinforcement

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3. Determining the cut

3.1. Determine the position of the cut -A- between the openings (holes). Mark the cut.

Cutting through retaining bracket for support tube

4. Cutting through retaining bracket for support tube

4.1. Cut through retaining bracket for support tube in area -A- .

Separating inert-gas welded seams

5. Separating inert-gas welded seams

5.1. Separate inert-gas welded seams in areas -A- and -B - using a parting

grinder.

Cutting the spotwelds

6. Cutting the spotwelds

6.1. Mill off spotwelds in areas -A- and -B- using a spotweld cutter.

Diagnostic system: reading out fault memory and activating systems

Removing lower side member reinforcement

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Separating spotwelds

7. Separating

spotwelds

7.1. Separate spotwelds in areas -A- and -B- using a parting grinder.

Preparing connection areas of the body for installing lower side
member reinforcement

Safety instructions for flying sparks during grinding and welding work

ATTENTION

Danger of explosion and fire from flying sparks during grinding and welding work!

Danger of injury and danger of damage to vehicle parts and other vehicles due to flying sparks

• 

→ Cover vehicle parts such as battery, fuel system, paintwork, glass and passenger compartment parts with

fire-proof covers and, if necessary, remove batteries and fuel-carrying components.

→ No other vehicles may be left unprotected in areas used for body repair!

Preparing connection area of body for installing lower side member
reinforcement

Diagnostic system: reading out fault memory and activating systems

 Preparing connection areas of the body for installing lower side member reinforcement

1639

Cleaning the welding areas

1. Clean undersealing, adhesive residue and paint off the body connecting flanges in the marked areas

-A, B, C, D-

 using a hot-air gun or rotary brush. Grind the connecting flanges until bare.

Cleaning the welding areas

2. Remove expanded sealant on body in the marked area -A- using a hot-air gun or rotary

brush.

3. Coat spot-weld flange areas with zinc powder paint.

3.1. Coat all spot-weld flange areas with zinc powder

paint.

Fitting lower side member reinforcement and preparing for
installation

Safety instructions for sharp-edged body and unit parts

ATTENTION

Danger of injury! Sharp-edge burrs on body and unit parts!

Injuries from sharp edges on body and unit parts.

• 

Diagnostic system: reading out fault memory and activating systems

Preparing connection area of body for installing lower side memberreinforcement

1640