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E30 suspension refresh - stock Boge/Sachs

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Joined: 22 Aug 1999
Posts: 3087
Location: Seattle, WA USA

PostPosted: Mon Sep 09, 2013 11:57 am    Post subject: E30 suspension refresh - stock Boge/Sachs Reply with quote

We're redoing the entire suspension of Logan's 325e in the coming weeks. I thought I'd do a writeup of all the parts and some of the steps we did in the process.

The car, '87 325e, I sold to Logan at 144k, now has 180k-ish, and stock original shocks and struts! Yes BMWs here in the Pacific NW last a long time.

We've decided to just restore the suspension to as close to stock as we can. Since Boge(Sachs) was original supplier for shocks/struts and many suspension bits, we're going mainly with Boge parts.

Here is an assembly diagram of front and rear suspensions:

We're adding the Z3 rear shock reinforcement plates to insure that thin shock mount area doesn't crack over the next 100k miles.

Parts list: (all parts ordered from Pelican Parts in July 2013)

10x 07-11-9-904-295-M58 Collar Nut, 8 mm (Locking) $1.00
2x 31-33-1-124-449-M58 Foam Bump Stop for Front Shocks, 325/e/es/i/is/iC/iX $11.50
2x 31-33-1-134-314-M604 Protection Boot for Front Strut/Shock (2 per car, sold individually), BMW E30 325/e/es Brand: Vaico $2.25
2x 31-33-1-139-452-M810 Front Strut Mount (32mm Cover Cap) $35.25
2x 33-52-6-772-864-M30 Gasket, for Rear Upper Shock Mount to Body, E30 325/e/es ... (all) $0.75
2x 33-52-6-779-670-M10 Kit 101P-E36-P062: (E46 style) Shock Mount, Rear Upper (2 per car, sold per each) Brand: Sachs-Boge $12.50
2x 33-53-1-136-395-M58 Foam Bump Stop for Rear Shocks $14.00
2x 51-71-8-413-359-M230 Kit 101P-E36-P062: Rear Shock Mount Spacer Plate, 2 Per Car $10.25
2x 33-52-1-135-888-M10 Boge Rear Shock Absorber (2 per car, sold individually) 325/e/es/i/is/iX (1984-91) Brand: Sachs $85.50
2x 31-32-1-135-892-M10 Boge Front Strut Insert (2 per car, sold individually) 325/e/es/i/is (1984-91) Brand: Sachs $115.75

remaining parts to order:
2x 31-33-1-110-196-M9 Strut Dust Protection Collar (2 per car, sold individually) 325/e/es, Each Brand: Genuine BMW $3.25
2x 31-31-1-139-453-M926 Cover Cap for Strut Mount (32 mm), 325/e/es, 325i/is/iC/iX, Brand: Genuine BMW $2.75
1x 31-12-9-061-222-M69 Control Arm Mounting Bushing Set, 2 Bushings Per Set, M3 (1987-91) Brand: Lemfoerder $43.00
1x 31-12-1-127-726-M69 Lower Control Arm, Right, 325/e/es/i/is/iC (1984-91) $94.50
1x 31-12-1-127-725-M69 Lower Control Arm, Left, 325/e/es/i/is/iC (1984-91) Brand: Lemfoerder $93.25

- used steering rack - not sure on this one yet, need to inspect
2x rear shock lower bolts
2x tie rods

Some pictures of E30 suspension projects here, I'll put together a specific group of pics later
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