Hello!
It is time to change the suspension on our 15 years old A2 1.2TDI 3L. Because the original dampers are no longer supplied I want to go with an aftermarket solution (dampers, springs, bushes, dust covers, etc..). I want slightly bigger ground clearance, if it is possible, and better handling. With the original suspension now, it does not give enough confidence to run higher speed in curves, being also quite low and wobbly.
Can you give me some part codes that will fit?
Thanks!
[QUOTE="Erlingtheelder, post: 437165, member: Audi A2 1.2 Tdi
Suspension - Components for Overhaul
NB: This is the English translation of the current German A2 Website Information specific to the 1.2Tdi. I’ve now sourced the parts I need to refresh my 1.2 TDi’s 256k miles travelled front and rear suspension systems, bar a few items. Bilstein front and rear shock absorbers and springs listed on German site, plus all the spring seats, shocker dust sleeves and bump stops etc. Also changing all wheel bearings, discs, drums, pads and shoes plus disc dust shields. While at it, lower front wishbones, hub ‘knuckkles’ etc. Yet to source front drop links and ARB bushes/plastic sleeves. Good luck with your work, RAB is an excellent source of advice.
This thread is about converting the chassis on the 1.2 TDI to Bilstein B4.
Further information and the "history of development" can be found in this thread: Alternative chassis for 1.2. Thanks to all the pioneers who tried out the shock absorber-spring combination (marked in blue in the list below) and classified it as suitable for everyday use.
Below is a summary of all parts required for the conversion:
Parts used front axle (part number)
2x shock absorbers Bilstein B4 (Bilstein: 22-044761 / formerly VNE-4476)
2x coil springs (VAG: 171 411 105 G 952 Bilstein: 36-131105)
2x suspension strut bearings (VAG: 6N0 412 331 E)
2x axial deep groove ball bearings (VAG: 6N0 412 249 C)
2x bellows (VAG: 6N0 413 175 A)
2x stop buffers (VAG: 6Q0 412 301 A)
2x holder for speed sensor cable (VAG: 6N0 972 327 E) => Optional, if the holder from the old damper is not re-used
6x hexagon collar screw M8x25 (VAG: N 019 530 8) Torque: 25Nm
4x hexagon collar screw M12x1.5x70 (VAG: N 104 694 01)
4x hexagon collar nut (self-locking) M14x1.5 (VAG: N 101 064 02) Torque: 70Nm + 90 °
Parts used rear axle (part number)
2x shock absorbers Bilstein B4 (Bilstein: BNE-A612)
2x stop buffers (VAG: 6Q0 512 131 B)
2x dust protection tube VAG: 1J0 513 425 A) => Optional, old part can normally be reused
2x spring washers (VAG: 8Z0 511 149 A)
2x hexagon screw M10x75 (VAG: N 905 173 04)
2x hexagon collar nut (self-locking) M10 (VAG: N 102 861 10) Torque: 55Nm
4x hexagon screw M10x35 (VAG: N 906 484 02) Torque: 30Nm + 90 °
Wheel alignment
In contrast to the other A2 engine variants, a toe AND camber setting is mandatory for the 1.2 TDI after the chassis has been replaced as part of an axle measurement.
Decrease
Due to the special shock absorber-spring combination (replacement of the original springs), the conversion on the front axle is subject to acceptance (individual acceptance). This acceptance was successfully carried out on my ball and one more ball. If you have a specific interest, I will be happy to put you in contact with the test center (=> PN).
Driving behavior
The difference in driving behavior is clearly noticeable.
Above all, punching through potholes and the tendency to roll sideways are a thing of the past. All in all, I would classify the chassis as typically bilstein taut but not hard.
Vehicle height
The vehicle height remains almost identical to the standard chassis (in this case approx. 5mm higher immediately after installation, which will settle a bit over time). See also:
Erling the elder
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