Robotson Posted June 10, 2019 Report Share Posted June 10, 2019 On two separate occasions now, I've had to pull over due to a sudden onset of really heavy vibration through the steering wheel - which is in time with the engine vibrations. Video of the second time it happened here: https://youtu.be/jwGuTTyxxbo The vibration gets worse when I rev it, and also when turning the steering wheel. I had it checked over by a local garage after the first time, and they couldn't find a thing wrong with it. No worn bushes, nothing wrong with the steering rack or engine mounts. The weird thing is, both times it happened, it kind of wears off by just driving the car again. Also worth noting, both times it happened were after I booted it a bit out of a side road onto a main road. Quote Link to comment Share on other sites More sharing options...
momo Posted June 10, 2019 Report Share Posted June 10, 2019 Does the power steering still work when it happens? I know it could be difficult to tell when at speed.. Have you checked PAS fluid levels? If it matches engine speed i'd say it's something on the belt drive (hence asking about power steering). So either Power steering pump, water pump, crank pulley, tensioners or AC pump. Robotson 1 Quote Link to comment Share on other sites More sharing options...
Fishman68 Posted June 10, 2019 Report Share Posted June 10, 2019 Seized brake calliper? Quote Link to comment Share on other sites More sharing options...
Robotson Posted June 10, 2019 Author Report Share Posted June 10, 2019 2 hours ago, momo said: Does the power steering still work when it happens? I know it could be difficult to tell when at speed.. Have you checked PAS fluid levels? If it matches engine speed i'd say it's something on the belt drive (hence asking about power steering). So either Power steering pump, water pump, crank pulley, tensioners or AC pump. Thanks for the reply! It just had a full service immediately after it happened the first time, and they mentioned topping up all fluids so I'm guessing the PAS fluid is fine. I'll check though. What you're saying about the belt drive sounds sensible though. Plenty of things to investigate there! I'll mention those things to the indie BMW place when it goes there in a couple of weeks. Ps it had a new water pump recently so hopefully it won't be that. Ps ps, I noticed the rear brake pads weren't changed in the service - is it normal to only change the front pads in a full service? Btw, this was at my local garage, not at any kind of dealership or indie bmw place. Quote Link to comment Share on other sites More sharing options...
Robotson Posted June 10, 2019 Author Report Share Posted June 10, 2019 2 hours ago, Fishman68 said: Seized brake calliper? Hmm, I don't think it would affect the car when stationary though (see video)? Quote Link to comment Share on other sites More sharing options...
momo Posted June 11, 2019 Report Share Posted June 11, 2019 Brake pads wouldn't be standard on any service. It's usually an extra Robotson 1 Quote Link to comment Share on other sites More sharing options...
kirkynut Posted July 17, 2019 Report Share Posted July 17, 2019 Have you got to the bottom of this? It's puzzling me. My gut feeling is a pulley with a damper on it is on it's way out but I don't know if the crank pulley has a damper on it or not. Kirkynut Quote Link to comment Share on other sites More sharing options...
momo Posted July 18, 2019 Report Share Posted July 18, 2019 14 hours ago, kirkynut said: Have you got to the bottom of this? It's puzzling me. My gut feeling is a pulley with a damper on it is on it's way out but I don't know if the crank pulley has a damper on it or not. Kirkynut Does on the 330d. The pulley has a rubber centre hence why they always fall apart on the 330d.. lol. Could be something knocking the rack as it moves maybe? Quote Link to comment Share on other sites More sharing options...
Robotson Posted March 4, 2020 Author Report Share Posted March 4, 2020 On 17/07/2019 at 22:38, kirkynut said: Have you got to the bottom of this? It's puzzling me. My gut feeling is a pulley with a damper on it is on it's way out but I don't know if the crank pulley has a damper on it or not. Kirkynut I never got to the bottom of it no - but last week the power steering pump died! So I'm willing to bet it was that all along, in it's death throws! Quote Link to comment Share on other sites More sharing options...