Volkswagen ID.3: General information, Body. Leaks

• Service fluids or vehicle fluids
• Damaged components
• External factors
• Locating water ingress
• Check list for locating water ingress

Service fluids or vehicle fluids

Service fluids or vehicle fluids

♦ Washer fluid, due to leaking or blocked washer fluid line -1- from washer fluid reservoir to rear window washer system.

♦ Coolant, due to defective coolant lines or heat exchanger in vehicle interior.

♦ Condensed water from the evaporator, due to blocked or loose condensed drain -1-.

Damaged components

Damaged components

Water ingress can cause corrosion damage, reducing the service life of a vehicle.

Water ingress must be repaired using different repair procedures depending on the point of entry.

Sliding sunroof

The water drain hoses of the sliding sunroof have a design flow rate of 2 l/min. Larger amounts of water cannot be drained.

Important

● Compressed or kinked water drain hoses must be renewed → General body repairs, exterior; Rep. gr.60; Water drain hoses; Removing and installing water drain hoses.

Windows

Bonded windows

Leaks in windows can have the following causes:

♦ Missing adhesive

♦ Interrupted adhesive bead or insufficient height of adhesive bead

♦ Incorrect application of chemicals, e.g. primer and activator interchanged

Bolt-on windows

Insufficient sealing of the window seal to the body can be the cause of leaking windows.

All vehicles (continued)

Doors

If water leaks out under the door trim, the following components may be the cause:

♦ Window guide

♦ Outer window slot seal

♦ Grommets

♦ Films

♦ Leadthroughs

♦ Inner cover

♦ Incorrectly installed loudspeaker

Seals

♦ Damaged seals, e.g. on doors.

Damage

♦ Damaged or incorrectly adjusted components, e.g. doors

Rear lid

Water ingress from outside might be caused by insufficient bonding of the rear window or a defective seal on the rear lid, tail lights or securing elements.

Vehicle fluids can enter the vehicle through a leaking washer fluid hose to the rear window washer system.

Luggage compartment

♦ Leaking rear lid seal

♦ Missing fine seam seal

♦ Missing or damaged seals on tail light clusters

Vehicle interior, front and rear footwell

♦ Damage to underbody

♦ Water overflow through doors or sliding sunroof

♦ Insufficient adhesive bond at windows

Water drain

♦ Water overflow due to blocked water drain valves in plenum chamber.

Fine seam sealing

♦ Sealant or seals not fitted during repair

Plugs and grommets

♦ Incorrect operation by customer

♦ Retrospective installations, attachments or conversions

♦ Missing fine seam seal in body area as well as missing welds and poorly executed adhesive bonds

♦ Worn or porous seals and sealants

♦ Improperly installed plugs and grommets -1- for leadthroughs

Welded joints

♦ Improperly repaired accident damage or improperly welded sheet metal

External factors

External factors

Possible external influences that can lead to water ingress:

♦ Rain water

♦ Water from car washes or washing vehicles by hand

♦ Thawing snow or ice

Locating water ingress

Locating water ingress

Special tools and workshop equipment required

♦ ultrasonic tester -V.A.G 1842S-

Removing

– Complete → Rep. gr.52; Check list for locating water ingress together with vehicle user.

– Observe Technical Product Information (TPIs).

– Check seals, accident damage, blockages of water drains.

Preparing vehicle

Important

● The vehicle must be dry on the inside and outside.

Locating water ingress

The procedure of locating water ingress is described for the front door as an example.

Determining contact pressure of seal

– Coat door seal with chalk.

– Close door.

– Open door.

Important

● The contact pattern of the chalk must be even on both sides of the sealing surface.

– Clamp a piece of solid paper in the door and slowly pull out piece of paper.

Important

● It should not be possible to withdraw the piece of paper from the door without difficulty.

Locating water ingress with soapy water

– Wet the door in the area of the side window and the edges with soapy water -A-.

Important

● The aid of an additional person is required for the subsequent work steps.

– Blow compressed air -C- against door from the inside.

– Check vehicle from outside in area of door for soap bubbles -B-.

If the point of water ingress has been located:

– Eliminate cause for water ingress.

♦ Make leaking seams water-tight.

♦ Reseal areas that have missing adhesive, or remove the component and apply new adhesive during installation.

♦ If the contact pressure of the seal is too low, adjust components to each other.

– Water vehicle again.

– Carry out water test again.

Continued

If the point of water ingress has not been located:

– Use ultrasonic tester -V.A.G 1842S- to locate water ingress.

Check list for locating water ingress

Check list for locating water ingress

Protocol for locating the ingress of waterComplete together with vehicle user.
Vehicle data:Item no.: Brand: Production date: Date: Status: Dealership: Vehicle identification number Model Engine type: Mileage: Retrofitted components:Gearbox type: Service technician: Has the vehicle been checked?
Can the customer complaint be confirmed? Yes
Yes _
_ No
No _
_

Diagram for marking area where water has been determined

Since when does water enter?___km From the beginning_Since recently_Increasing_Since an accident_Since repair work on vehicle_Area which was affected by repair work or accident _________________________Vehicle history Components have been retrofitted by a qualified workshop or customer.
Which? __________________________________________ Yes _ No _ Vehicle was involved in an accident.
Which area of the vehicle is affected? ______________________________________ Yes _ No _ The vehicle is parked under trees or any other plants. Yes _ No _Circumstances under which the water entersExternalInternal Heavy rain
Continuous rain
Frequent rain
Gentle rain _
_
_
_ Switch on windscreen wiper.
Switch on rear window wiper.
Switching on heater.
Switching on air conditioning system. _
_
_
_ Gantry car wash
Self-service washing plant
Rain and velocity
In any of the aforementioned conditions _
_
_
_ Related observationsSmell_Windows fogged_Whistling noises due to ingress of air_Leaves in area of plenum chamber_Bad radio reception_ Water quantityPuddles on the vehicle floor_Vehicle floor is moist_Water constitutionRain water_Tap water (car wash)_Washer fluid_Coolant_Can the responsible component or origin of the water ingress be localised? Left headlight _ Right headlight _ Front left wheel housing _ Front right wheel housing _ Plenum chamber _ Windscreen _ Front left interior floor _ Front right interior floor _ Left front door _ Right front door _ Front door window _ Panoramic sunroof _ Roof aerial _ Left rear door _ Right rear door _ Rear door window _ Left fixed side window _ Right fixed side window _ Left side window _ Right side window _ Rear left interior floor _ Rear right interior floor _ Rear lid _ Rear windscreen _ Rear left wheel housing _ Rear right wheel housing _ Left rear lights _ Right rear lights _ Luggage compartment _ Heater _ Water drain of evaporator _ Leak in line of window wiper system _ Door seal _ Window strip _ Sealing _ Cap _ Blocked water drain _ Holes _ High-level brake light _ Other … _Which?______________________________________________________________________Remarks:

General information, Body. Preparing for disposalGeneral information, paint. Safety information