Volkswagen ID.4: Subframe

• Assembly overview - subframe
• Removing and installing subframe with steering rack, rear wheel drive
• Removing and installing subframe with motor, all-wheel drive
• Fixing subframe in position
• Preparing scissor-type assembly platform
• Supporting components in vehicle front end
• Renewing front motor mounting, all-wheel drive

Assembly overview - subframe

1. Bolt

• Qty. 2
• Renew after removing
• M 12 × 1.5 × 80
• 70 Nm +180º

2. Bolt

• Qty. 2
• Renew after removing
• M8 × 40
• 16 Nm +90º

3. Bracket
4. Bolt

• Qty. 4
• Renew after removing
• M10 × 35
• 50 Nm +90º

5. Cross member
6. Bracket
7. Support plate
8. Bolt

• Qty. 4
• Renew after removing
• M10 × 45
• 50 Nm +90º

9. Bolt

• Qty. 4
• Renew after removing
• M 12 × 1.5 × 95
• 70 Nm +180º

10. Bolt

• Qty. 4
• Renew after removing
• M 12 × 1.5 × 90
• 70 Nm +180º

11. Bolt

• Qty. 2
• Renew after removing
• M 12 × 1.5 × 95
• 70 Nm +180º

12. Support plate
13. Subframe

• ⇒ Rep. gr. 40 ; Removing and installing subframe with steering rack
• ⇒ Rep. gr. 40 ; Fixing subframe in position

Removing and installing subframe with steering rack, rear wheel drive

Special tools and workshop equipment required

• ball joint puller - 3287A-
• scissor-type assembly platform - VAS 6131B-
• socket/bit set, 39-piece - VAS 6928-

Removing

Front left vehicle level sender - G78- and front right vehicle level sender - G289- will henceforth be referred to as "front vehicle level sender".

Steering rack and power steering control unit - J500- will henceforth be referred to as "steering rack".

DANGER

High voltage can cause fatal injury.

Danger of severe or fatal injuries from electric shock or electric arcs.

• Have a high-voltage technician (HVT) or a high-voltage expert (HVE) de-energise the high-voltage system.

• ⇒ Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220; Rep. gr. 93 ; De-energise high-voltage system; De-energising high-voltage system .
• Detach wheels on front axle ⇒ Rep. gr. 44 ; Removing and installing wheel .
• Remove front underbody cladding ⇒ General body repairs, exterior; Rep. gr. 66 ; Underbody cladding; Removing and installing front underbody cladding .
• Remove front left and front right wheel housing liner ⇒ General body repairs, exterior; Rep. gr. 66 ; Wheel housing liner; Removing and installing front wheel housing liner .
• Remove air intake box of front heater and air conditioning unit ⇒ Heating, air conditioning system; Rep. gr. 87 ; Front heater and air conditioning unit; Removing and installing air intake unit of heater and air conditioning unit .
• Remove battery tray ⇒ Electrical system; Rep. gr. 27 ; Battery; Removing and installing battery tray .
• ⇒ Electric motor; Rep. gr. 19 ; Cooling system/coolant; Draining coolant .
• Remove voltage converter ⇒ Electric drive, rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220; Rep. gr. 93 ; Voltage converter; Removing and installing voltage converter [A19] .
• Remove heater element (PTC) 3 - Z132- ⇒ Heating, air conditioning system; Rep. gr. 87 ; Coolant circuit; Removing and installing heater element 3 [Z132] .
• ⇒ Rep. gr. 40 ; Support components in vehicle front end .

Vehicles with air deflector

• Remove air deflector on left and right ⇒ General body repairs, exterior; Rep. gr. 63 ; Front bumper; Removing and installing air deflector .

All vehicles (continued)

• Unclip retainer -2- for brake lines -3- on subframe -1-.

• Unscrew bolts -6- for brackets -1-, -2- and -3- from subframe -7-.
• Pull out inner pin, and lever off retaining clip -5-.
• Move aside coolant pipe -4- on subframe -7-.

For reasons of clarity, the subframe -4- is shown removed in the illustration.

• Release locking device -3- for cable guide -1- at top of subframe -4-. Push aside electrical wire -2- to do this.
• Pull off cable guide -1- upwards.
• Unclip retaining clip -6- for electrical wire -2- from rear cross member -5-.
• Pull off retaining clip -8-.
•  Release locking element -7-, and pull off cable guide upwards.

• Unscrew bolt -3-.
• Pull universal joint -1- in direction of -arrow- off steering rack -4-.

Left-hand drive vehicles

• Disconnect electrical connectors -1- and -4- from steering rack -3-.
• Unclip electrical wire from steering rack.

All vehicles (continued)

Right-hand drive vehicles

• Disconnect electrical connectors -2- and -3- from steering rack -1-.
• Unclip electrical wire from steering rack.

All vehicles (continued)

Vehicles with front vehicle level sender

• Unbolt front left and front right vehicle level senders from suspension link ⇒ Rep. gr. 43 ; Removing and installing front vehicle level senders [G78]/[G289] .

All vehicles (continued)

• Detach coupling rods from anti-roll bar on both sides of vehicle, and pull them out of anti-roll bar ⇒ Rep. gr. 40 ; Removing and installing coupling rod .
• Remove track rod ball joint -4- from wheel bearing housing -1- on both sides of vehicle.
• Loosen nut -2- on track rod ball joint -4-, but do not unscrew it completely. Counterhold on pin using a suitable tool while doing so.
• To protect thread, leave nut -2- screwed onto pin a few turns.

NOTICE

Risk of damage to wheel bearing housing! Loosened bushes on wheel bearing housing due to incorrect placement of ball joint puller.

• Position ball joint puller in such a way that fulcrum of bottom support is on bush and not on wheel bearing housing.

• Use ball joint puller - 3287A- -A- to press track rod ball joint -4- off wheel bearing housing -1-. Unscrew nut -2-.
• Detach lower suspension link -2- from swivel joint -1- on both sides of vehicle.
• Unscrew nuts -3-.
• Pull suspension link -2- in direction of -arrow A- off swivel joint.
• Pull wheel bearing housing -1- outwards in direction of -arrow B-.
• Swing aside wheel bearing housing -1- outwards to relieve tension from suspension link -2-.

• Unscrew bolts -arrows- for impact bar -2- from subframe -1-.
• Use socket/bit set, 39-piece - VAS 6928- to unscrew bolt -4- for strut -3-.

• Unscrew bolts -arrows- for impact bar -2- from subframe -1-.
• Unscrew bolt -4- for strut -3-.

• ⇒ Rep. gr. 40 ; Fix subframe in position .
• Use scissor-type assembly platform - VAS 6131B- to lower subframe.

Installing

Install in reverse order of removal, observing the following:

WARNING

High voltage can cause fatal injury.

Danger of severe or fatal injuries from electric shock or electric arcs.

• Have a high-voltage technician (HVT) or a high-voltage expert (HVE) re-energise the high-voltage system.

• ⇒ Electric motor; Rep. gr. 93 ; Re-energising high-voltage system; Re-energising high-voltage system .

Vehicles with front vehicle level sender

• Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

All vehicles (continued)

Tightening torques

• ⇒ Rep. gr. 40 ; Assembly overview - subframe
• ⇒ Rep. gr. 40 ; Assembly overview - wheel bearing
• ⇒ Rep. gr. 48 ; Assembly overview - steering rack
• ⇒ Rep. gr. 48 ; Assembly overview - steering column
• ⇒ Rep. gr. 40 ; Assembly overview - anti-roll bar
• ⇒ Rep. gr. 40 ; Assembly overview - suspension link, swivel joint
• ⇒ Rep. gr. 48 ; Assembly overview - track rods

Removing and installing subframe with motor, all-wheel drive

Special tools and workshop equipment required

• scissor-type assembly platform - VAS 6131B-
• socket/bit set, 39-piece - VAS 6928-
• tensioning strap - T10038-

Removing

Steering rack and power steering control unit - J500- will henceforth be referred to as "steering rack".

Front left vehicle level sender - G78- and front right vehicle level sender - G289- will henceforth be referred to as "front vehicle level sender".

Power and control electronics 2 for electric drive - JX4- will henceforth be referred to as "power and control electronics".

Three-phase current drive 2 - VX97- will henceforth be referred to as "three-phase current drive".

DANGER

High voltage can cause fatal injury.

Danger of severe or fatal injuries from electric shock or electric arcs.

• Have a high-voltage technician (HVT) or a high-voltage expert (HVE) de-energise the high-voltage system.

• ⇒ Electric motor; Rep. gr. 93 ; De-energising high-voltage system; De-energising high-voltage system .
• Remove wheel housing liners on both sides of vehicle ⇒ General body repairs, exterior; Rep. gr. 66 ; Wheel housing liner; Removing and installing front wheel housing liner .
• Remove air ducts on both sides of vehicle ⇒ General body repairs, exterior; Rep. gr. 63 ; Front bumper; Removing and installing air duct .
• Remove battery tray ⇒ Electrical system; Rep. gr. 27 ; Battery; Removing and installing battery tray .
• ⇒ Electric motor; Rep. gr. 19 ; Cooling system/coolant; Draining coolant .
• Remove PTC heater element 3 - Z132- ⇒ Heating, air conditioning system; Rep. gr. 87 ; Coolant circuit; Removing and installing PTC heater element 3 [Z132], all-wheel drive .
• Remove drive shafts on both sides of vehicle ⇒ Rep.

  gr. 40 ; Removing and installing drive shaft .

• Unscrew bolts -3- for vibration isolation strut -2- from lock carrier -1-.

Left-hand drive vehicles

• Unscrew bolt -3-.
• Detach potential equalisation line -2-.
• Disconnect electrical connector -4- on power and control electronics -1-.
• Unclip electrical wire -arrows-.

• Unclip retainer -arrows- for coolant hose -2-.

• Unscrew bolts -2- and -4-.
• Pull universal joint -1- off steering rack -5-.
• Pull universal joint -1- off intermediate steering shaft -3-.

All vehicles (continued)

Right-hand drive vehicles

• Unscrew bolt -2-.
• Detach potential equalisation line -3-.
• Disconnect electrical connector -5- on power and control electronics -1-.
• Unclip retainer -arrow- for electrical wire -3- from bracket -4-.

• Unclip coolant hose -2- -arrows-.

• Unscrew bolts -4-.
• Remove bracket -1-.
• Unscrew bolts -2- and -5-.
• Pull universal joint -1- off steering rack -4-.
• Pull universal joint -1- off intermediate steering shaft -3-.

All vehicles (continued)

• Pull gearbox breather line -2- off three-phase current drive -1-.

• Open hose clip -arrow-.
• Pull coolant hose -2- off three-phase current drive -1-.

• Unclip line retainer -2- from subframe -1-.

• Unscrew bolts -4- for retainer -3- of high-voltage cable -2-.

• Push locking element -4- in direction of -arrow B-.
• Open locking bracket -3- in direction of -arrow A-, and pull off high-voltage connector -2-.

• Unscrew bolt -1- on cross piece -2-.

• Lever cable duct -2- in direction of -arrow- off cross member -1-.

• Unclip retainer -2- for brake lines -3- at rear right -1- on subframe.

• Pull out inner pins -4-, and unclip retaining clip -3-.
• Detach coolant pipe -2- from cross piece -1-.

• Open hose clip -3-.
• Pull coolant hose -2- off three-phase current drive -1-.

• Open retainer -2- for coolant hose -3-.
• Move aside coolant hose -3-.

• Unscrew bolts -6- from subframe -7-.
• Pull inner pin out of retaining clip -5-, and lever off retaining clip.
• Move aside coolant pipe -4- on subframe -7-.

• Open clip -2- above cross piece -1-.
• Pull coolant hose -3- off coolant pipe -4-.

Left-hand drive vehicles

• Disconnect electrical connectors -1- and -4- from steering rack -3-.
• Unclip electrical wire from steering rack -3-.

All vehicles (continued)

Right-hand drive vehicles

• Disconnect electrical connectors -2- and -3- from steering rack -1-.
• Unclip electrical wire from steering rack -1-.

All vehicles (continued)

• Unscrew bolts -arrows- for impact bar -2- from subframe -1-.
• Unscrew bolt -4- for vibration isolation strut -3-.

• Unscrew bolts -arrows- for impact bar -2- from subframe -1-.
• Use socket/bit set, 39-piece - VAS 6928- to unscrew bolt -4- for vibration isolation strut -3-.

• Pull vibration isolation strut -2- on left and right in direction of -arrow A-.
• Pull vibration isolation strut -2- in direction of -arrow B- past subframe -1-.

• Pull vibration isolation strut -2- in direction of -arrow A-.
• Pull vibration isolation strut -2- in direction of -arrow B- out of lock carrier -1-.

• ⇒ Rep. gr. 40 ; Support components in vehicle front end .
• ⇒ Rep. gr. 40 ; Take up weight of subframe using scissortype assembly platform .
• ⇒ Rep. gr. 40 ; Fix subframe in position .

NOTICE

Risk of lines becoming damaged due to limited space.

• When lowering, ensure sufficient clearance to refrigerant lines and electrical wiring.

• Carefully lower subframe and motor 100 mm using scissortype assembly platform - VAS 6131B- .
• Use a tensioning strap - T10038- to secure subframe and motor to scissor-type assembly platform - VAS 6131B- .
• Carefully lower subframe and motor further using scissortype assembly platform - VAS 6131B- .

Installing

Install in reverse order of removal, observing the following:

WARNING

High voltage can cause fatal injury.

Danger of severe or fatal injuries from electric shock or electric arcs.

• Have a high-voltage technician (HVT) or a high-voltage expert (HVE) re-energise the high-voltage system.

• ⇒ Electric motor; Rep. gr. 93 ; Re-energising high-voltage system; Re-energising high-voltage system .

Vehicles with front vehicle level sender

• Carry out required function/functions using ⇒ Vehicle diagnostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .

All vehicles (continued)

Tightening torques

• ⇒ Rep. gr. 40 ; Assembly overview - subframe
• ⇒ Rep. gr. 48 ; Assembly overview - steering column
• ⇒ Rep. gr. 40 ; Assembly overview - anti-roll bar
• ⇒ Rep. gr. 40 ; Assembly overview - suspension link, swivel joint
• ⇒ Rep. gr. 48 ; Assembly overview - track rods
• ⇒ Electric motor; Rep. gr. 10 ; Removing and installing electric motor; Assembly overview - electric motor 40.2.19
• ⇒ General body repairs, exterior; Rep. gr. 63 ; Front bumper; Assembly overview - impact bar

Servicing threads in longitudinal member

Repairing the thread in captive nuts in the longitudinal member is possible only under certain conditions ⇒ Body Repairs; Rep.

gr. 50 .

Fixing subframe in position

Special tools and workshop equipment required

• stud - T10486/1-
• ⇒ Rep. gr. 40 ; Take up weight of subframe via scissor-type assembly platform .
• Unscrew bolts -4-.
• Unscrew bolts -5-.
• Remove support plate -3-.

• Screw threaded pin - T10486/1- -A- into outer hole on left side of subframe -1-.
• Tighten threaded pin - T10486/1- -A- to 20 Nm.

• Unscrew bolts -2-.
• Unscrew bolts -6-.
•  Remove support plate -1-.

• Screw threaded pin - T10486/1- -A- into outer hole on right side of subframe -1-.
• Tighten threaded pin - T10486/1- -A- to 20 Nm.

• Unscrew bolt -2-.

• Screw in threaded pin - T10486/1- -A-, and tighten it to 20 Nm.

• Unscrew bolt -3-.

• Screw in threaded pin - T10486/1- -A-, and tighten it to 20 Nm.

Installing

Install in reverse order of removal, observing the following:

• Always unscrew only one stud - T10486/1- at a time, and tighten respective bolt.
• Carry out road test.

Important

• If steering wheel is found to be off centre during road test, wheel alignment must be performed.

Tightening torques

• ⇒ Rep. gr. 40 ; Assembly overview - subframe

Taking up weight of subframe using scissor-type assembly platform

Special tools and workshop equipment required

• scissor-type assembly platform - VAS 6131B

Removing

• ⇒ Rep. gr. 40 ; Prepare scissor-type assembly platform .
• Position scissor-type assembly platform - VAS 6131B- -Alongitudinally under vehicle, align it, and raise it.
• Position supports -2- and -4- on subframe -1-.
• Adjust height of supports -2- and -4-.
• Raise scissor-type assembly platform - VAS 6131B- -A- further.
• Align supports -4- with holes of subframe -1-.
• Align supports -2- with holes of subframe -1-.
• Tighten bolts for supports -2- and -4- on scissor-type assembly platform - VAS 6131B- -A- to 40 Nm.
• Align support -3- with cross member at rear of subframe -1-.
• Align height of supports -2-, -3- and -4-, and bolt them on.
• Raise scissor-type assembly platform - VAS 6131B- further, and support subframe -1-.

Preparing scissor-type assembly platform

Special tools and workshop equipment required

• Plate - VAS 6131/10-1-
• Scissor-type assembly platform - VAS 6131B-
• Spindle - VAS 6131/10-5-
• Universal support - VAS 6131/13-2-
• support set for Audi - VAS 6131/10-
• support set for Audi - VAS 6131/10-4-
• support set for Audi - VAS 6131/10-7-

Removing

Prepare supports 1:

• Assemble supports using the following tools:

1. Adapter, support set for Audi - VAS 6131/10-7-
2. Spindle - VAS 6131/10-5-
3. Support cone, support set for Audi - VAS 6131/10-4-
4.  Plate - VAS 6131/10-1-
5. Scissor-type assembly platform - VAS 6131B-
6. M 10 x 25 bolt, support set for Audi - VAS 6131/10-

Prepare support 2:

• Assemble support using the following tools:

1. Universal support - VAS 6131/13-2-
2. Spindle - VAS 6131/10-5-
3. Support cone, support set for Audi - VAS 6131/10-4-
4. Plate - VAS 6131/10-1-
5. Scissor-type assembly platform - VAS 6131B-
6. M 10 x 25 bolt, support set for Audi - VAS 6131/10-

• Screw bolts for supports by hand into scissor-type assembly platform - VAS 6131B- -3-. Position scissor-type assembly platform - VAS 6131B- -3- horizontally.

Supporting components in vehicle front end

Special tools and workshop equipment required

• adapter - 10-222A/18-
• adapter - 10-222A/19-
• adapter - 10-222A/8-
• adapter - T10626/1-
• adapter set - T10626-
• bracket - T10346/1-
• hook - 10-222A/20-
• support - T10626/2-
• support - T10626/3-
• support bracket - 10-222A-
• tensioning belt - T10523-
• tube - T40091/1-

Removing

The air conditioner compressor - VX81- will henceforth be referred to as "air conditioner compressor".

DANGER

High voltage can cause fatal injury.

Danger of severe or fatal injuries from electric shock or electric arcs.

• Have a high-voltage technician (HVT) or a high-voltage expert (HVE) de-energise the high-voltage system.

• ⇒ Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220; Rep. gr. 93 ; De-energise high-voltage system; De-energising high-voltage system .
• Remove air intake box of heater and air conditioning unit ⇒ Heating, air conditioning system; Rep. gr. 87 ; Front heater and air conditioning unit; Removing and installing air intake box of heater and air conditioning unit .
• Remove cap of towing eye -1-.

• Screw adapter - T10626/1- -1- in mounting for towing eye in direction of -arrow-.
• Tighten adapter - T10626/1- -1- in direction of -arrow- via ½ inch mounting for square drive -4- to 20 Nm.
• Screw support - T10626/2- -2- into adapter - 10-222A/19- -G-.
• Pull out ball locking pin -3- from support - T10626/2- -2-.
• Push support - T10626/2- -2- onto adapter - T10626/1- -1-.
• Selected suitable guide groove in adapter - T10626/1- -1-.
• Secure support - T10626/2- -2- with ball locking pin -3-.
• Turn adapter - 10-222A/19- -G- with support - T10626/2- -2- on adapter - T10626/1- -1-, and put it down onto floor.

• Push adapter - 10-222A/18- -E- and adapter - 10-222A/18- -F- onto support bracket - 10-222A- -B-.

Important

• Long arm from adapter - 10-222A/18- -E- and adapter - 10-222A/18- -F- points in direction of travel.

• Mount adapter - 10-222A/8- -A- onto support bracket - 10-222A- -B- on left and right.

Important

• Side with tool number specification from adapter - 10-222A/8- -A- points inwards.
• Elongated hole of cross member from support bracket - 10-222A- -B- is located on right-hand side of vehicle.

• Mount support - T10626/3- -D- on elongated hole of cross member from support bracket - 10-222A- -B- using M10 × 65 bolt from adapter set - T10626- .
• Place support bracket - 10-222A- -B- with both adapters - 10-222A/8- -A- onto upper wheel housing longitudinal members.
• Push tube - T40091/1- -C- into support of adapter - 10-222A/19- -G-.
• Push tube - T40091/1- -C- into support - T10626/3- -D-.
• Align support bracket.
• Hand-tighten threaded connections of support bracket.
• Disconnect electrical connectors -3- from air conditioner compressor -1-.
• Unclip cable holder -4-.
• Unscrew bolts -2-.

• Unscrew bolt for potential equalisation line -4- on air conditioner compressor -1-.

• Mount bracket - T10346/1- -A- with M6 nut -1- and M6 bolt -2- on air conditioner compressor -3-.

• Attach spindle from support bracket - 10-222A- -D- to adapter - 10-222A/18- -F-.
• Engage hook - 10-222A/20- -C- in bracket - T10346/1- -A-.
• Attach spindle from support bracket - 10-222A- -D- to hook - 10-222A/20- -C-.
• Guide tensioning strap - T10523- -G- under air conditioner compressor -1-.
• Preload air conditioner compressor -1- slightly via spindle from support bracket - 10-222A- -D-; do not raise.
• Lay tensioning strap - T10523- -G- around adapter - 10-222A/18- -E-.
• Push end of tensioning strap - T10523- -G- into tensioning strap buckle.
• Preload air conditioner compressor -1- via tensioning belt - T10523- -G-; do not raise.

• Raise air conditioner compressor -1- evenly with tensioning belt - T10523- -G- and spindle from support bracket - 10-222A- -D- until air conditioner compressor -1- is no longer in contact with subframe -2-.

Installing

Install in reverse order of removal, observing the following:

WARNING

High voltage can cause fatal injury.

Danger of severe or fatal injuries from electric shock or electric arcs.

• Have a high-voltage technician (HVT) or a high-voltage expert (HVE) re-energise the high-voltage system.

• ⇒ Electric motor; Rep. gr. 93 ; Re-energising high-voltage system; Re-energising high-voltage system .

Tightening torques

• ⇒ Heating, air conditioning system; Rep. gr. 87 ; Air conditioner compressor; Assembly overview - air conditioner compressor

Renewing front motor mounting, all-wheel drive

Removing

• ⇒ Rep. gr. 10 ; Removing and installing front motor; Removing front motor .
• Unscrew bolts -arrows-.
• Remove bracket -1-.

• Unscrew bolts -2- and -3-.
• Remove motor carrier -1-.

Installing

Install in reverse order of removal, observing the following:

Tightening torques

• ⇒ Rep. gr. 40 ; Assembly overview - subframe