Volkswagen ID.4: Assembly overview - front right longitudinal member, part section
Volkswagen ID.4 (E21) 2021-2025 Service Manual / Body repairs /
Body - front / Assembly overview - front right longitudinal member, part section
- Front longitudinal member
- ⇒ Rep. gr. 50; Renewing
front right longitudinal
member, part section
- Separating cut
- Bonded area

Assembly overview - front right longitudinal member, part section (second
separating cut)
- Front longitudinal member
- ⇒ Rep. gr. 50; Renewing
front right longitudinal
member, part section
(second separating
cut)
- Front longitudinal member
cross panel
- Retainer for brake hose
- Cover plate for front longitudinal
member
- Moulded foam insert
- ⇒ Rep. gr. 00; Moulded
foam inserts
- Web plate
- Separating cut
- Web plate for front longitudinal
member
- Pipe set bracket
- Mounting bracket for subframe
- Bonded areas

Assembly overview - upper longitudinal member
Overview is shown for left side of vehicle as an example
- Upper longitudinal member
- ⇒ Rep. gr. 50; Renewing
upper longitudinal
member
- Web plate
- Bonded areas
- Separating cut

Assembly overview - upper inner longitudinal member
Overview is shown for left side of vehicle as an example
- Upper inner longitudinal
member
- ⇒ Rep. gr. 50; Renewing
upper inner longitudinal
member
- Bonded areas

Renewing front left longitudinal member, part section
WARNING
Gases/vapours hazardous to health are generated when
welding, soldering or cutting using tools which produce sparks
in foam-treated areas.
- Do not weld, solder or cut closer than 15 mm to moulded
foam inserts.
- Use an extraction system during work.
NOTICE
If separating cuts are made too deep, underlying reinforcement
could be damaged.
- Only make separating cuts with body saw.
- Rewelding of reinforcements is not permitted due to safety
reasons.
NOTICE
If welds are positioned too far on outside, strength could be
impaired
- RP weld points must be placed as far as possible from
outer edge of welding flange.
NOTICE
Strength could be impaired if continuous seam is changed
- SG continuous weld seam must not be reworked (ground
or smoothed).
NOTICE
If adhesive is applied prematurely, bond could be impaired
- New part must be welded in within 90 minutes.
Observe safety information ⇒ Rep. gr. 00; Safety information
Only tools and workshop equipment authorised by Volkswagen
AG may be used ⇒ 2.1
Removing
- Mark separating cut -2- all around on front longitudinal member
-1- in accordance with dimension -a- and cut in straight
line.

- Separate original joint.
- Remove longitudinal member part section -1-.
- Mark parting cut -2- on front longitudinal member -1- in
accordance with dimension -a-, and make parting cut in a
straight line.

- Separate original joint.
- Remove remainder of longitudinal member -1-.
- Remove remaining material.

- Completely remove remaining adhesive.
- Grind bonding surfaces and welding surfaces back to bare
metal and clean.
Installing
Replacement parts
- For allocation of 2-pack body adhesive, see ⇒ Electronic
parts catalogue (ETKA)
Important
- New parts must be adapted and attached with the vehicle
standing on the straightening bracket set.
- Grind bonding surfaces and welding surfaces on new part
-1- down to bare metal and clean.

- Transfer separating cut -2- to new part -1-, and cut in a
straight line.

- Transfer separating cut -3- to new part -4-, and cut in a
straight line.
- Grind bonding surfaces and welding surfaces back to bare
metal and clean.
- Apply 2-component body adhesive over entire area of RP
spot weld seam.

- Adjust new part -1- and -2- to fit and fix in position.
- Check fit with add-on parts.
- Weld in new part -1- and -2-, RP spot weld seam and SG
continuous weld seam.
- Apply 2-component body adhesive to entire surface.

- Adapt new part -1- to fit and fix in position.
- Check fit with add-on parts.
- Weld in new part -1-, RP spot weld seam.
Vehicles with studs.
Renew studs.
Renewing front left longitudinal member, part section (2nd separating cut)
WARNING
Gases/vapours hazardous to health are generated when
welding, soldering or cutting using tools which produce sparks
in foam-treated areas.
- Do not weld, solder or cut closer than 15 mm to moulded
foam inserts.
- Use an extraction system during work.
NOTICE
If separating cuts are made too deep, underlying reinforcement
could be damaged.
- Only make separating cuts with body saw.
- Rewelding of reinforcements is not permitted due to safety
reasons.
NOTICE
Strength could be impaired if continuous seam is changed
- SG continuous weld seam must not be reworked (ground
or smoothed).
NOTICE
If adhesive is applied prematurely, bond could be impaired
- New part must be welded in within 90 minutes.
Observe safety information ⇒ Rep. gr. 00; Safety information
Only tools and workshop equipment authorised by Volkswagen
AG may be used ⇒ 2.1
Removing
- Mark separating cut -2- on cover plate for front longitudinal
member -1- in accordance with dimension -a- and cut in a
straight line.

- Separate original joint.
- Remove front longitudinal member cover plate -1-.
- Remove any foam residue -3-.

- Mark parting cut -2- on front longitudinal member -1- in
accordance with dimension -a-, and make parting cut in a
straight line.
- Separate original joint.
- Remove front longitudinal member -1-.
- Remove remaining material on original joint -1-.

- Remove remaining material.
- Grind bonding surfaces and welding surfaces back to bare
metal and clean.
Installing
Replacement parts
- For allocation of 2-pack body adhesive, see ⇒ Electronic
parts catalogue (ETKA)
Important
- New parts must be adapted and attached with the vehicle
standing on the straightening bracket set.
Grind bonding surfaces and welding surfaces on new part
-1- down to bare metal and clean.

- Transfer separating cut -2- to new part -1-, and cut in a
straight line.

- Transfer separating cut -3- to new part -4-, and cut in a
straight line.
- Drill 8 mm diameter holes for SG plug weld seam in new part
-6-.
- Grind bonding surfaces and welding surfaces on new part
-1- to -7- down to bare metal and clean.
Important
- Exact position of new parts must be carried over from old
part.
- Grind welding surfaces back to bare metal and clean.

- Apply 2-component body adhesive to entire surface.
- Adapt new part -2- to new part -1- via hole, and fix in position.
- Adapt new part -4- to new part -3-, and fix in position.
- Weld in new part -1- and -4-, RP spot weld seam.
- Apply 2-component body adhesive to entire surface.

- Adapt new part -1- to fit and fix in position.

- Check fit with add-on parts.
- Weld in new part -1-, SG continuous weld seam and RP spot
weld seam.
- Apply 2-component body adhesive to entire surface.

- Adapt new part -1- to fit via hole, and fix it in position.
- Check fit with add-on parts.
- Weld in new part -1- (SG plug weld seam and RP spot weld
seam).
- Prepare moulded foam insert -2- for installation and insert.
- Adapt new part -1- to fit and fix in position.

- Check fit with add-on parts.
- Weld in new part -1-, SG continuous weld seam and RP spot
weld seam.
- Apply 2-component body adhesive to entire surface.

- Adapt new part -1- to fit and fix in position.
- Check fit with add-on parts.
- Weld in new part -1-, RP spot weld seam.
- Install battery tray ⇒ Rep. gr. 50; Renewing battery tray.
Vehicles with studs.
Renew studs.
Renewing front right longitudinal member, part section
WARNING
Gases/vapours hazardous to health are generated when
welding, soldering or cutting using tools which produce sparks
in foam-treated areas.
- Do not weld, solder or cut closer than 15 mm to moulded
foam inserts.
- Use an extraction system during work.
NOTICE
If separating cuts are made too deep, underlying reinforcement
could be damaged.
- Only make separating cuts with body saw.
- Rewelding of reinforcements is not permitted due to safety
reasons.
NOTICE
If welds are positioned too far on outside, strength could be
impaired
- RP weld points must be placed as far as possible from
outer edge of welding flange.
NOTICE
Strength could be impaired if continuous seam is changed
- SG continuous weld seam must not be reworked (ground
or smoothed).
NOTICE
If adhesive is applied prematurely, bond could be impaired
- New part must be welded in within 90 minutes.
Observe safety information ⇒ Rep. gr. 00; Safety information
Only tools and workshop equipment authorised by Volkswagen
AG may be used ⇒ 2.1
Removing
- Mark separating cut -2- all around on front longitudinal member
-1- in accordance with dimension -a- and cut in straight
line.

- Separate original joint.
- Remove longitudinal member part section -1-.
- Mark parting cut -2- on front longitudinal member -1- in
accordance with dimension -a-, and make parting cut in a
straight line.

- Separate original joint.
- Remove remainder of longitudinal member -1-.
- Remove remaining material.

- Completely remove remaining adhesive.
- Grind bonding surfaces and welding surfaces back to bare
metal and clean.
Installing
Replacement parts
- For allocation of 2-pack body adhesive, see ⇒ Electronic
parts catalogue (ETKA)
Important
- New parts must be adapted and attached with the vehicle
standing on the straightening bracket set.
- Grind bonding surfaces and welding surfaces on new part
-1- down to bare metal and clean.

- Transfer separating cut -2- to new part -1-, and cut in a
straight line.

- Transfer separating cut -3- to new part -4-, and cut in a
straight line.
- Grind bonding surfaces and welding surfaces back to bare
metal and clean.
- Apply 2-component body adhesive over entire area of RP
spot weld seam.

- Adjust new part -1- and -2- to fit and fix in position.
- Check fit with add-on parts.
- Weld in new part -1- and -2-, RP spot weld seam and SG
continuous weld seam.
- Apply 2-component body adhesive to entire surface.

- Adapt new part -1- to fit and fix in position.
- Check fit with add-on parts.
- Weld in new part -1-, RP spot weld seam.
Vehicles with studs.
Renew studs.
Renewing front right longitudinal member, part section (second separating cut)
WARNING
Gases/vapours hazardous to health are generated when
welding, soldering or cutting using tools which produce sparks
in foam-treated areas.
- Do not weld, solder or cut closer than 15 mm to moulded
foam inserts.
- Use an extraction system during work.
NOTICE
If separating cuts are made too deep, underlying reinforcement
could be damaged.
- Only make separating cuts with body saw.
- Rewelding of reinforcements is not permitted due to safety
reasons.
NOTICE
If welds are positioned too far on outside, strength could be
impaired
- RP weld points must be placed as far as possible from
outer edge of welding flange.
NOTICE
Strength could be impaired if continuous seam is changed
- SG continuous weld seam must not be reworked (ground
or smoothed).
NOTICE
If adhesive is applied prematurely, bond could be impaired
- New part must be welded in within 90 minutes.
Observe safety information ⇒ Rep. gr. 00; Safety information
Only tools and workshop equipment authorised by Volkswagen
AG may be used ⇒ 2.1
Removing
- Mark separating cut -2- on cover plate for front longitudinal
member -1- in accordance with dimension -a- and cut in a
straight line.

- Separate original joint.
- Remove front longitudinal member cover plate -1-.
- Remove any foam residue -3-.

- Mark parting cut -2- on front longitudinal member -1- in
accordance with dimension -a-, and make parting cut in a
straight line.
- Separate original joint.
- Remove front longitudinal member -1-.
- Separate original joint on remaining material -1-.

- Remove remaining material.
- Grind bonding surfaces and welding surfaces back to bare
metal and clean.
Installing
Replacement parts
- For allocation of 2-pack body adhesive, see ⇒ Electronic
parts catalogue (ETKA)
Important
- New parts must be adapted and attached with the vehicle
standing on the straightening bracket set.
- Grind bonding surfaces and welding surfaces on new part
-1- down to bare metal and clean.

- Transfer separating cut -2- to new part -1-, and cut in a
straight line.

- Transfer separating cut -4- to new part -3-, and cut in a
straight line.
- Drill 8 mm diameter holes for SG plug weld seam in new part
-8-.
- Grind bonding surfaces and welding surfaces on new part
-1- to -8- down to bare metal and clean.
Important
- Exact position of new parts must be carried over from old
part.
- Grind welding surfaces back to bare metal and clean.

- Apply 2-component body adhesive to entire surface.
- Adapt new part -2- to new part -1- via hole, and fix in position.
- Adapt new part -3- to new part -1-, and fix in position.
- Adapt new part -5- to new part -4-, and fix in position.
- Weld in new part -1- and -5-, RP spot weld seam.
- Apply 2-component body adhesive to entire surface.

- Adapt new part -1- to fit and fix in position.

- Check fit with add-on parts.
- Weld in new part -1-, SG continuous weld seam and RP spot
weld seam.
- Apply 2-component body adhesive to entire surface.

- Adapt new part -1- to fit via hole, and fix it in position.
- Check fit with add-on parts.
- Weld in new part -1-, SG plug weld seam and RP spot weld
seam.
- Prepare moulded foam insert -2- for installation and insert.
- Adapt new part -1- to fit and fix in position.

- Check fit with add-on parts.
- Weld in new part -1-, SG continuous weld seam and RP spot
weld seam.
- Apply 2-component body adhesive to entire surface.

- Adapt new part -1- to fit and fix in position.
- Check fit with add-on parts.
- Weld in new part -1-, RP spot weld seam.
Vehicles with studs.
Renew studs.
Renewing upper longitudinal member
WARNING
Gases/vapours hazardous to health are generated when
welding, soldering or cutting using tools which produce sparks
in foam-treated areas.
- Do not weld, solder or cut closer than 15 mm to moulded
foam inserts.
- Use an extraction system during work.
NOTICE
If separating cuts are made too deep, underlying reinforcement
could be damaged.
- Only make separating cuts with body saw.
- Rewelding of reinforcements is not permitted due to safety
reasons.
NOTICE
If welds are positioned too far on outside, strength could be
impaired
- RP weld points must be placed as far as possible from
outer edge of welding flange.
NOTICE
If adhesive is applied prematurely, bond could be impaired
- New part must be welded in within 90 minutes.
Observe safety information ⇒ Rep. gr. 00; Safety information
Only tools and workshop equipment authorised by Volkswagen
AG may be used ⇒ 2.1.
Removal and installation are described for left side of vehicle as
an example.
Removing
- Make separating cut -2- on upper longitudinal member -1- as
shown.

- Separate original joint.
- Remove upper longitudinal member -1-.
- Remove remaining material.

- Completely remove remaining adhesive.
- Grind bonding surfaces and welding surfaces back to bare
metal and clean.
Installing
Replacement parts
- For allocation of 2-pack body adhesive, see ⇒ Electronic
parts catalogue (ETKA)
Important
- New parts must be adapted and attached with the vehicle
standing on the straightening bracket set.
- Transfer separating cut -2- to new part -1- and cut.

- Drill 8 mm diameter holes for SG plug weld seam in new part
-1-.
- Grind bonding surfaces and welding surfaces back to bare
metal and clean.
- Apply 2-component body adhesive to entire surface.

- Adapt new part -1- to fit and fix in position.

- Check fit with add-on parts.
- Weld in new part -1-, SG plug weld seam and RP spot weld
seam.
- Weld parting cut, SG stepped weld seam.
Renewing upper inner longitudinal member
WARNING
Gases/vapours hazardous to health are generated when
welding, soldering or cutting using tools which produce sparks
in foam-treated areas.
- Do not weld, solder or cut closer than 15 mm to moulded
foam inserts.
- Use an extraction system during work.
NOTICE
Do not damage underlying reinforcements.
Rewelding of reinforcement is not permitted due to safety reasons.
NOTICE
If welds are positioned too far on outside, strength could be
impaired
- RP weld points must be placed as far as possible from
outer edge of welding flange.
NOTICE
If adhesive is applied prematurely, bond could be impaired
- New part must be welded in within 90 minutes.
Observe safety information ⇒ Rep. gr. 00; Safety information
Only tools and workshop equipment authorised by Volkswagen
AG may be used ⇒ 2.1
Removal and installation are described for left side of vehicle as
an example.
Removing
Upper longitudinal member already removed ⇒ Rep. gr. 50;
Renewing upper longitudinal member

- Remove upper inner longitudinal member -1-.
- Remove remaining material.

- Completely remove remaining adhesive.
- Grind bonding surfaces and welding surfaces back to bare
metal and clean.
Installing
Replacement parts
- For allocation of 2-pack body adhesive, see ⇒ Electronic
parts catalogue (ETKA)
Important
- New parts must be adapted and attached with the vehicle
standing on the straightening bracket set.
- Grind bonding surfaces and welding surfaces on new part
-1- down to bare metal and clean.

- Apply 2-component body adhesive to entire surface.

- Adapt new part -1- to fit and fix in position.

- Check fit with add-on parts.
- Weld in new part -1- (SG plug weld seam, SG continuous
weld seam and RP spot weld seam).
- Install upper part of longitudinal member ⇒ Rep. gr. 50; Renewing
upper part of longitudinal member.