Welded, Brazed, and Riveted Joint Specifications
Note. Please also pay attention to body repair using structural adhesive, equipment recommendations for resistance spot welding machines and equipment recommendation for MIG brazing.
Significant changes to the vehicle design lead to new joining techniques in bodywork production.
Significant changes in the manufacturing process generally result from
- The use of pre-painted sheet metal to increase corrosion protection.
- The use of higher strength and highest strength sheet metal to increase body rigidity/impact safety while at the same time reducing vehicle weight.
Joining techniques recently introduced in bodywork production include
- Laser-welded vehicle roof
- Gas-shielded MIG brazing
These new joining methods must be applied/adapted to the special requirements of service based on the new material quality and joining techniques so as to ensure professional bodywork repair.
| WARNING | The specifications named below must be followed. Failure to do so could lead to component damage, such as corrosion or structural damage at the repair area. |
- Before the start of work, a test weld/brazing is to be carried out on the area to be repaired (similar to a sample paint spray test). This is done by subjecting a sample of the relevant panel joint to a test weld/brazing and seam check. The sample panel must come from the vehicle to be repaired or be a new part.
- Structural seams (e.g. butt seam upon part replacement in the area of the front frame) are to be sealed with body sealant after priming. Before installing closure plates, make sure that corrosion protection is applied to areas such as the rear plate and weld seams in cavities. Inaccessible cavities are to be sealed as well. Cavity sealing after painting is mandatory.
- The configuration of the welded and brazed joints for metal service parts sometimes differs from the seam configuration or joint specification used in production due to the different joining methods and joining order. For example, slots must be made in certain service parts or body sections in order to create the joint. For these such cases, the service literature explicitly specifies the configuration of the joint.
- For certain joining methods or seam geometries, it may be necessary to attach a reinforcing plate at the location of the joint. This plate serves to ensure a high-quality connection that has the same structural properties as a new part. The reinforcing sheet metal is to be taken from the new part remnant or from the component of the sheet metal to be repaired. The service instructions provide information on the configuration and connection to be used for the reinforcing sheet metal. In order to prevent structural breaches, the corners and edges of the reinforcing pate are to be deburred and bevelled.
- For structural seams (e.g. butt seams upon part replacement at the front frame), the deck/root seam must not be ground or smoothed. Reason: structural breach of the component upon grinding, notching or heat, uncontrolled reduction in metal thickness.
- Specific welding/brazing parameters are to be set for the individual seam areas based on equipment version. This information is to be taken from the equipment manufacturer documentation.
- Should a resistance spot welding spot require special settings, such is indicated by entering SPP in field 5. Settings can be found in the parameter lists of the recommended equipment manufacturers. Recommended manufacturers can be found in the newsletter.
- No spot weld primer is to be used at joints when using gas-shielded welding methods, such as MAG welding and MIG brazing. Reason: reduction of seam quality through gas emission, causing pore formation, which reduces the strength of the seam.
- Rivets are only to be used on metal body parts in combination with the adhesive sealing system. Only waterproof, stainless steel rivets are allowed to be used. Use of aluminum rivets instead of steel is not permitted due to corrosion and insufficient strength.
Technical Specifications
Note. MAG welding must comply with guideline QT 001131.
- MIG brazing must comply with guideline GME7834.
- Spot welding operations must comply with guideline QT 001130.
- The most recently updated version of the guidelines is to be applied.
The guidelines can be requested from the following address (subject to a fee)
Scheme 1
| Callout | Description | ||
|---|---|---|---|
| 1 | Resistance Spot Welding | ||
| 2 | Plug Spot Welding | ||
| 3 | I | Overlapped | |
| II | Offset | ||
| 1 | 10-20 mm (depending on plug) (0.4-0.8 in) | ||
| 2 | 6 mm for sheet metal up to 1.0 mm (0.04 in) 8 mm for sheet metal up to 2.0 mm (0.08 in) | ||
| 3 | 30-40 mm plug weld spacing (1.2-1.6 in) | ||
| Quilting Seam Spot Welding/Spot Brazing | |||
| I | Overlapped | ||
| II | Offset | ||
| 1 | 10-14 mm (0.4-0.6 in) | ||
| 2 | 3-5 mm (0.1-0.2 in) | ||
| 3 | 30-40 mm (1.2-1.6 in) | ||
Scheme 2
| Callout | Description | ||
|---|---|---|---|
| 4 | I | Overlapped | |
| II | Offset | ||
| 1 | At least 15-20 mm (depending on slot size) (0.6-0.8 in) | ||
| 2 | See 4.2 Slot Sizes | ||
| 3 | Spacing and number of slots (see specification in service instruction) | ||
Scheme 3
| Callout | Description | |
|---|---|---|
| 4 | I | 5x18 mm slot (sheet metal thickness up to 0.8 mm) (0.03 in) 6x20 mm slot (sheet metal thickness 0.8-1.2 mm) (0.03-0.05 in) 8x24 mm slot (sheet metal thickness over 1.2 mm) (0.05 in) |
| II | 6x8x20 mm slot with pre-drilled spot welds (0.8-1.2 mm sheet metal) (0.03-0.05 in) | |
Average Adhesive Bead Length/Cartridge Capacity
The cartridge contents of anti-corrosion adhesive sealant kit 93160535/15 05 000 provide an adhesive bead that is about 3.50 m (11 ft) in length on average, depending on the bead thickness.
The cartridge contents of single-component window adhesive 93165025/15 04 815 provide an adhesive bead that is about 3.00 m (10 ft) in length on average, depending on the bead thickness.
Scheme 4
Ignition System Specifications
| Application | Specification | |
|---|---|---|
| Metric | English | |
| Firing Order | 1-2-3-4-5-6 | |
| Spark Plug Gap | 1.1 mm | 0.043 in |
| Spark Plug Torque | 20 Nm | 15 lb ft |
Fastener Tightening Specifications
| Application | Specification | |
|---|---|---|
| Metric | English | |
| Accelerator Pedal Position Sensor | 10 Nm | 89 lb in |
| Air Cleaner Element | 4 Nm | 36 lb in |
| Camshaft Position Actuator Solenoid Valve - Exhaust | 10 Nm | 89 lb in |
| Camshaft Position Actuator Solenoid Valve - Intake | 10 Nm | 89 lb in |
| Camshaft Position Sensor - Exhaust | 10 Nm | 89 lb in |
| Camshaft Position Sensor - Intake | 10 Nm | 89 lb in |
| Charge Air Bypass Valve | 10 Nm | 89 lb in |
| Charge Air Bypass Valve Vacuum Tank | 10 Nm | 89 lb in |
| Crankshaft Position Sensor | 10 Nm | 89 lb in |
| Engine Coolant Temperature Sensor | 20 Nm | 15 lb ft |
| Evaporative Emission Canister Purge Solenoid Valve | 4 Nm | 36 lb in |
| Fuel Feed Intermediate Pipe | 30 Nm | 22 lb ft |
| Fuel Feed Pipe (Metal) to Fuel Pump Module | 30 Nm | 22 lb ft |
| Fuel Feed Pipe (Metal) to Intake Manifold | 7 Nm | 62 lb in |
| Fuel Injection Fuel Rail Assembly 1st sequence | 22 Nm | 16 lb ft |
| Fuel Injection Fuel Rail Assembly 2nd sequence | 22 Nm | 16 lb ft |
| Fuel Injection Fuel Rail Fuel Pressure Sensor | 33 Nm | 25 lb ft |
| Fuel Pump Flow Control Module | 7 Nm | 62 lb in |
| Fuel Pump Module | 15 Nm | 11 lb ft |
| Fuel Tank Filler Hose | 4 Nm | 36 lb in |
| Heated Oxygen Sensor - Sensor 1 | 42 Nm | 31 lb ft |
| Heated Oxygen Sensor - Sensor 2 | 42 Nm | 31 lb ft |
| Ignition Coil | 10 Nm | 89 lb in |
| Intake Air Pressure and Temperature Sensor | 7 Nm | 62 lb in |
| Knock Sensor - Left Side | 25 Nm | 18 lb ft |
| Knock Sensor - Right Side | 25 Nm | 18 lb ft |
| Manifold Absolute Pressure Sensor | 4 Nm | 36 lb in |
| Spark Plug | 20 Nm | 15 lb ft |
| Throttle Body Assembly | 10 Nm | 89 lb in |
| Turbocharger Wastegate Actuator | 10 Nm | 89 lb in |
| Turbocharger Wastegate Regulator Solenoid Valve | 10 Nm | 89 lb in |
Prevailing Torque Fasteners
Prevailing torque fasteners create a thread interface between the fastener and the fastener counterpart in order to prevent the fastener from loosening.
All Metal Prevailing Torque Fasteners
These fasteners accomplish the thread interface by a designed distortion or deformation in the fastener.
Nylon Interface Prevailing Torque Fasteners
These fasteners accomplish the thread interface by the presence of a nylon material on the fastener threads.
Metric Prevailing Torque Fastener Minimum Torque Development
| Application | Specification | |
|---|---|---|
| Metric | English | |
| All Metal Prevailing Torque Fasteners | ||
| 6 mm | 0, 4 Nm | 4 lb in |
| 8 mm | 0, 8 Nm | 7 lb in |
| 10 mm | 1, 4 Nm | 12 lb in |
| 12 m | 2, 1 Nm | 19 lb in |
| 14 mm | 3 Nm | 27 lb in |
| 16 mm | 4, 2 Nm | 37 lb in |
| 20 mm | 7 Nm | 62 lb in |
| 24 mm | 10, 5 Nm | 93 lb in |
| Nylon Interface Prevailing Torque Fasteners | ||
| 6 mm | 0, 3 Nm | 3 lb in |
| 8 mm | 0, 6 Nm | 5 lb in |
| 10 mm | 1, 1 Nm | 10 lb in |
| 12 mm | 1, 5 Nm | 13 lb in |
| 14 mm | 2, 3 Nm | 20 lb in |
| 16 m | 3, 4 Nm | 30 lb in |
| 20 mm | 5, 5 Nm | 49 lb in |
| 24 mm | 8, 5 Nm | 75 lb in |
English Prevailing Torque Fastener Minimum Torque Development
| Application | Specification | |
|---|---|---|
| Metric | English | |
| All Metal Prevailing Torque Fasteners | ||
| 1/4 in | 0, 5 Nm | 4.5 lb in |
| 5/16 in | 0, 8 Nm | 7.5 lb in |
| 3/8 in | 1, 3 Nm | 11.5 lb in |
| 7/16 in | 1, 8 Nm | 16 lb in |
| 1/2 in | 2, 3 Nm | 20 lb in |
| 9/16 in | 3, 2 Nm | 28 lb in |
| 5/8 in | 4 Nm | 36 lb in |
| 3/4 in | 7 Nm | 54 lb in |
| Nylon Interface Prevailing Torque Fasteners | ||
| 1/4" 0, 3 | Nm | 3 lb in |
| 5/16" 0, 6 | Nm | 5 lb in |
| 3/8" 1 | Nm | 9 lb in |
| 7/16" 1, 3 | Nm | 12 lb in |
| 1/2" 1, 8 | Nm | 16 lb in |
| 9/16" 2, 5 | Nm | 22 lb in |
| 5/8" 3, 4 | Nm | 30 lb in |
| 3/4" 5 | Nm | 45 lb in |
Scheme 5
Scheme 6
Scheme 7
Scheme 8
Scheme 9
Scheme 10
Scheme 11
Scheme 12
Scheme 13
Scheme 14
Scheme 15
- Fillister Head Screw with Inner TORX
- Flat Bolt with Inner TORX
- Cheese-Head Screw with Inner Hex - Rolled-In Washer
- Hex Bolt
- Hex Bolt with Inner TORX
- Fillister Head Screw with Cross Recess
- Fillister Head Screw with Cross Recess
- Flat Head Screw with Inner TORX
- Hex Nut - Metal
- Special Nut - Plastic
- Blind Rivet
- Plug - Herringbone Profile
- Clips
- Plugs - Conical, Round, Colored
- Clips - Square, Light
- Snap Button - Black
- Cover Cap - Round, Colored
- Spring Clip - Light
- Spring Clip - Dark
- Spring Clip
- Stop Nut
- Hex Nut with Rolled-In Washer
- Flat Head Screw with Cross Recess
- TORX Bolt with Collar
- Cheese-Head Screw with Inner TORX with Rolled-In Washer
- Hex Bolt with Rolled-In Washer
- Hex Bolt with Rolled-In Washer
- Hex Bolt with Rolled-In Washer
- Fillister Head Screw with Cross Recess
- Hex Nut with Washer
- Special Plastic Nut without Thread
- Clip with Screw-In Fastening
- Terminal
- Body-Bound Rivet - Thick
- Body-Bound Rivet - Thin
- Fastening Clip
- Fastening Clip
- Body-Bound Rivet - Long
- Door Bolt
- Hollow Pin
- Collar Bolt - Hex
- Snap Button Nut with Inner TORX
- Rivet Nut
- Fastening Plug
- Hex Bolt
- Cap Nut - Plastic
- Plastic Screw Hook
- Plastic Nut
- Fastening Ring - Seat Pad
- Hex Bolt with Rolled-In Washer
- TORX Bolt with Rolled-In Washer
- TORX Bolt with Rolled-In Washer
- TORX Bolt with Rolled-In Washer
- Fillister Head Screw with Inner TORX
- Clip - Round, Light
- Clip - Elongated
- Cheese-Head TORX Bolt
- Fillister Head TORX Bolt
- Cheese-Head TORX Bolt - Steering Crossmember
- Washer - Steering Crossmember
- Tolerance Screw - Steering Crossmember
- Spring Clip
- Weld Stud
- Insertion Pin
- Body-Bound Rivet - Square
- Body-Bound Rivet - Round
- Fastening Plug
- Fastening Plug - Insertion Screw
- Fastening Plug
- Nut
- Fastening Plug
- Spring Nut
- Flat-Ended Screw with Cross Recess
- Bolt
- Self-Tapping Screw with Washer
- Terminal
- Terminal
- Sheet-Metal Clamp - Cable Laying
- Sheet-Metal Clamp - Cable Laying
- Sheet-Metal Clamp - Cable Laying
- Velcro Fastening
- Plug - Plastic
- Plug - Drainage
- Bracket - Plastic
- Flat-Head Screw - Cross Recess
- Hex Bolt with Rolled-In Washer
- Flat-Head Screw - Cross Recess
- Fillister Head Screw - Cross Recess, Washer
- Hex Bolt - Long
- Cheese-Head Screw - Long, Inner TORX
- Cheese-Head Screw - Short, Inner TORX
- Collar Nut
- Clip - Inner Paneling
- Clip - Cable
- Fastening Plug - Narrow
- Fastening Plug - Wide
- Collar Bolt - Washer
- Hex Bolts - Washer
- Rear Quarter Window Fastening Nut - Plastic
- Body-Bound Rivet
- TORX Bolt with Hex
- Philips Screw - Fillister Head
- Hex Bolt - Cross Recess
- Clips with Screw-In Fastening
- TORX Bolt
- Spring Clip
- Rivet Nut - Opel Fix
- Blind Rivet Nut
- Plastic Clip - Seat Occupancy Detection System
- Plastic Clamp
- TORX Bolt
- Clips
- Plastic Spring Nut
- Sill Panelling Clips
- Sliding Glass Sunroof Fastening Bolt
- Fastening Clip
- Fastening Clip
- Fastening Plug
- Fastening Clip
- Retaining Clamp
- Gloves
- Safety Glasses
- Cover Strip Fastening Clip
Component Fastener Tightening Caution
| WARNING | Replacement components must be the correct part number for the application. Components requiring the use of the thread locking compound, lubricants, corrosion inhibitors, or sealants are identified in the service procedure. Some replacement components may come with these coatings already applied. Do not use these coatings on components unless specified. These coatings can affect the final torque, which may affect the operation of the component. Use the correct torque specification when installing components in order to avoid damage. |
Torque Reaction Against Timing Drive Chain Caution
| WARNING | A wrench must be used on the hex of the camshaft when loosening or tightening in order to prevent component damage. Failure to prevent the torque reaction against the timing drive chain can lead to timing drive chain failure. |
See also:
• ENGINE IDENTIFICATION (V6)