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I suddenly have the abs, run flat, esp lights on. Not the first time and I always found a duff wheel sensor. This time all the sensors and wheel speeds are ok. If I stop and wait or drive off, sometimes the warnings so away. After switching off and then restarting they may come back. What can...

Apologies in advance for stupid question but can I change the W204 (C180 diesel) oil filter without draining the oil? thanks

Seems to be a common problem and you can find a **** post from me further on after finally cracking the problem. Here is what I learnt. If you are driving along and these warnings appear you can draw three conclusions: It is not the reluctor or impulse ring It is very unlikely to be the ESP or...

My apologies if this post exists already but I don't seem to be able to find a clear answer. iCarsoft found no wheel speed from the rear drivers side so I duly changed the Speed sensor and have the same result. What next though? Is it possible the reluctor ring is at fault? Seems pretty unlikely...

2011 W204 180 CDI The eco light on the dash seems to stay yellow all the time now. I rarely use this feature but I am intrigued. It doesn't matter if I have done 500 miles or 5, winter or summer. I have Carsoft and found no DTCs although it does not make specific reference to the ECO system. I...

SInce I have not used my aircon since last summer, it now smells rather like cow-dung when I use it. Merceds tell me it needs to have bacteria and things cleaned and there are products to do this. Which is the ost effective in your experience? They also said that either I remove the dash or...

I ordered a BOLK aircon filter for my w204 and it doesn't fit properly because the leading edge does not nest properly inside the housing. The original has a sort of tongue and this is solid. Is this just me being clumsy or anyone else had issues? Sadly it will probably cost me ore to return...

I have a W204 2011 diesel and think it needs new shocks; Is is possible to change just the shocks without messing with the springs or do I need a spring compressor (which I have for other cars but not sure it will fo the job here having looked at the manual). Alternatively, I have seen units...

I have a W204 180CDI diesel and the water pump is making an odd noise and the dealer says the pup needs to be changed. It looks pretty easy with 6/7 torx bolts to undo if you are just changing the central round part I think it is called the bearing housing). I saw a Youtube video that seems to...

2011 C180 diesel. Yesterday I stopped the car,switched off the engine and for some time there was a ticking sound from under the bonnet. It was as though something electrical was running - not horrendously loud though. I didn't open the bonnet to locate it since I was struggling getting the car...

When I bought my car new in 1981, they proposed waxing the engine compartment to stop corrosion. Now of course it has attracted loads of dust and is essentially black. Anybody know and easy way to remove the wax? Thanks

The dash lights on my 1981 240TD have suddenly stopped working. The lights on the auto gearbox shift work but the other lights andd switches don't. Fuses are all OK. Is this the dreaded rheostat or something else? Does the rheostat control all these lights? thanks for any pointers before I...

2021 W204 C180 diesel I need to change my brake fluid and most likely bleed the brakes bleed the brakes but the WIS is not too clear. To flush, it is simply a case of opening each nipple and letting it drain? The WIS implies six nipples but I can only find one per caliper unless I am missing...

W204 180 CDI 2011 I have changed the front wheel speed sensors a few times even though I only have 50k miles. Today the ESP/ABS/EBD lights came on at ignition. I stop and they go off and don't come back on again for another 20 miles. Going down a hill with the lights out, all was fine and then...

The instrument panel tells me i need a B5 service. The car is diesel with an auto box from 2011 and has done 50K miles. I usually just change the oil and filter but is B5 more than this? I have heard that the auto box fluid needs changing but this is a surprise given that even land rover can...

As part of my quest to find the knocking noise I have, I need some clarity on the rear suspension. Are these statements true? The rear subframe is attached to the chassis by two large bushes under the rear doors The differential is bolted to the subframe (or rear axle carrier as Mercedes call...

I know the W123 is no sports car, especially the diesel 240TD but I notice mine rolls a bit when I go round a roundabout. The roll-bar bushes are new as are the connecting rods and the SLS system has been full overhauled. This could be subjective and I am just comparing with my other more modern...

I need to change the SLS filter on my W123. It is located in the cap of the fluid reservoir and has a spring at the botm bu I can't see how to remove it. Anyone know to avoid me breaking it? thanks

I asked this in another post but suspect it got buried. I disconnected the SLS valve control arm and then moved the lever up and down with the engine running. Nothing happened so either the hydraulic pump is giving no pressure of the valve leaks internally or something. Has anybody used a...

I don't seem to be able to get a definitive answer to the question of whether I can tow my W123 automatic. With the engine running, apparently yes but without? If so, what speed or distance limits? thanks