Mercedes A class W168 automatic transmission control unit failure.Gear selection indicator disappears from dash, not even F.7 or 8 fault codes including P189 OK, as some of you probably know, i took it in for a diagnostic last week as it was cutting out when under heavy acceleration, and the fault was diagnosed as 'loss of pressure at the fuel rail'. Apparently it dropped from around 200 bar to 20 bar (it was on the star machine whilst on test drive) and there was a hell of a grinding noise coming Glow plug voltages work like this: If the outside temperature is below 50F (above 50 and you won't get any pre-glow prior to start), and from ignition on until 2 seconds voltage =12vdc=2200F (Plug temperature) Regardless of temperature and to lower the emissions after a start, from 2 seconds to 10 seconds = 10vdc = 1800F. Let Kent explain how his solutions finder works: "Just select the location of the problem you are experiencing, the chassis designation of your car and a few key words and click Search. If I have written a description of the problem or one related to it, it will show up on the results page. The causes of the problem will be explained and all For six years the car, bought from new and serviced by M-Benz, served the needs of myself and my wife, both pensioners, reasonably well. Repair costs totalled over £2,300. Year of manufacture. 2006. First year of ownership. 2006. Most recent year of ownership. 2012. Engine and transmission. Mercedes C-Class W203 W204 ESP light -ESP light on a C-Class is typically caused by a defective brake light switch or low battery voltage. Mercedes Benz ML-Class W163 W164 W166 - A common problem that causes the ESP light to come on in Mercedes-Benz ML models is the ABS pump. The brake light switch is also a common problem in this model too. In most models, Mercedes-Benz uses Pentosin CHF 11S fluid. Pentosin power steering fluid is sold at dealerships, but you can buy it for less online. Check Prices – Find Genuine Mercedes Benz Power Steering Fluid. Symptoms of Power Steering Problems. The power steering pump typically warns you with an audible noise when it is low on fluid. The first and most obvious sign of gear selector failure is difficulty shifting gears. If your Mercedes has an automatic transmission, every shift should be smooth and almost effortless. When you have trouble shifting consistently, you should know that something is malfunctioning. This can also be dangerous if you need to reverse quickly. As the title says. The temperature gauge fluctuates between 80-120 sitting in traffic quickly. It does not stay at 120 for a long time, maybe like a blink then goes back quickly to 85-100. It is like jumping to 120 then goes down in a second. Serpentine Belt replaced few weeks ago. Cooling system flushed last week. Peter Best Insurance is a leading specialist in Mercedes-Benz insurance. All MBO members are eligible for exclusive rates on all our classic car policies. Call now for our 'BEST' quote. Tel: 01376 573033. Forums. Technical. Bodywork, Tyres, Wheels & Trim. Hi guys seen an almost perfect w205 but it has a panoramic roof! V5b8.