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BMW 3 Series 325i E46 - New Shock Absorbers - pbirl
Had 4 new Sachs/Boge OE shocks fitted to my car. 2003, E46, SE, 47k miles. It was recommended by the servicing garage due to age rather than any issue but I was told they were fairly worn when removed. New ones make the car feel more taut and well damped but there’s little “give” in them. Cats eyes or ridges on the road “thunk” through the car while potholes or dips over drain covers cause the car to feel very unsettled albeit damped. Is this normal with new shocks? Do the shocks need time to bed in? Should the springs have been changed? Thank you for any help or pointers.

Edited by pbirl on 02/09/2018 at 01:47

BMW 3 Series 325i E46 - New Shock Absorbers - hardway

Yeah new shocks can "Feel" tough,

I even had one guy come back in a month later pleading to have his old ones re fitted.

Lucky for him they were still in the scrap bin and weren't leaky.

So he drove away with old shocks,

new ones in the boot and very happy.

Pointing out he requested the new ones in the first place I had no porblems.

Not like I was ripping him off.

I think I charged him half price on the fitting as all the fasteners were free and the swap took little time,

BMW 3 Series 325i E46 - New Shock Absorbers - pbirl
Well,,I won’t be having the originals refitted.
BMW 3 Series 325i E46 - New Shock Absorbers - skidpan

So he drove away with old shocks,

new ones in the boot and very happy.

That old fix. Car always work better using the old knackered parts with the new ones in a box in the boot. The new parts lso last far longer.

BMW 3 Series 325i E46 - New Shock Absorbers - hardway

Customer came in requesting supply fit new shocks,

Stated the ones on were weak,

Now as there isn't really an available shock test,

Well not one I've got access to apart from the "bounce" test,

Shocks dully bought and fitted.

So back to my O/P.

As they say "the customer is allways right".

Not that I agree with that but customers van,

Customers shocks,

Both old and new,

Who am I to agrue?

BMW 3 Series 325i E46 - New Shock Absorbers - hardway

And on a O/P point,

Were the new shocks front or rear,

Guessing fronts,

Guessing the top rubbers weren't renewed.

BMW 3 Series 325i E46 - New Shock Absorbers - pbirl
Yes, not sure how that story is relevant!

The four shocks were changed plus the front mounts - all OE parts. They just seem quite unyielding - particularly around town - but they are damping much better than the old ones, if that makes sense. On the open road the car feels much more taut.

Edited by pbirl on 04/09/2018 at 00:40

BMW 3 Series 325i E46 - New Shock Absorbers - gordonbennet

Isn't that why new shocks were wanted?, to dampen the spring effect which must have the effects described.

The only alternative if you wanted a choice of damping would have been variable rate dampers, but to be useful in day to day would require them to be adjustable from the driver's seat, no doubt this could be achieved but the cost would be high, i have this OE adjustable system on my Toyota and am dreading the time when new dampers are needed, no aftermarket compatibles.

I dare say they'll give a little after a whle but could seem stiffer still going into this winter as the oil inside thickens up.

I had dampers changed all round on my 90's Merc coupe a few years ago, they weren't leaking but i could feel slightly imbalanced damping as the car traversed undulations, as you have found the car was much better balanced on the road after the new ones fitted, i didn't really notice any harsher ride over bumps or the inevtiable pot holes but then the car is quite softly sprung anyway.

Edited by gordonbennet on 04/09/2018 at 09:02

BMW 3 Series 325i E46 - New Shock Absorbers - Andrew-T
The four shocks were changed plus the front mounts - all OE parts. They just seem quite unyielding - particularly around town - but they are damping much better than the old ones, if that makes sense. On the open road the car feels much more taut.

Perhaps the term 'shock absorber' is misleading - Damper is more appropriate? The springs absorb the initial shock while the 'shock absorbers' damp out oscillations in the spring.