Bushes, suspension and steering

Rubber bushes are used nowadays on the majority of vehicles to isolate and dampen road noise whilst at the same time allowing suspension and steering components some flexibility and movement.

Problems begin when the bushes deteriorate or become unbonded, when this happens the suspension component is no longer retained in its correct position, excessive movement occurs and noise increases.

The above are all examples from the front suspension, the rear suspension can also have rubber bushes and mountings, again when the bush deteriorates excessive movement and noise occurs. Laguna-rear- subframe

The above image is that of a Laguna rear arm mounting bush.

Also subject to checking for excessive movement  are the rubber bushes that steering racks can be mounted with, again the criteria when being checked is is there excessive movement or is the component insecure. The image below is of a pair of new steering rack mounting bushes beside a pair of worn bushes, two pairs are needed to mount the rack in this case a 54 reg mercedes c class.c-class_steering

In the above case the steering rack was moving enough to cause the ESP light to illuminate and for the ECU to limit the power produced by the engine.

Since the 20th of this month the ESP light being illuminated is a reason for rejection (failure)

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3 comments so far

  1. sean on

    Hi, my 307 is making a rattling noise on the back left side, I took it to a garage thinking it was the exhaust they fitted a new rubber… its still doing it, I looked under car myself and found the bottom coil on suspension broke off which I picked out… will I need a new one or will It be ok to drive? If so how much would it cost me.

    • an Mot tester on

      It will certainly need to be replaced before the next mot as an incomplete spring is a reason for rejection, however for a short period of time and avoiding “spirited” driving it should be safe. Cost wise seek out quotes from local garages, Probably 3/4 hour for labour + Parts + vat

  2. Armstrong Distributors on

    You need to replace the suspension and bushing if you are facing such issue in your cars.We are the dealer and manufacturers of after market problem solving parts of your cars.


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