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29 results found for eXponentia

...Various electrical problems, loss of central locking, wipers, immobiliser faults, etc. We have found these can be due to water ingress into the UCH module located in the near side of the dash. Water can find it's way into this module from the sunroof and roof mounted arial. &n...

...DPF systems seem to be gathering pace in the problem list. The Zafira B Z19DT is one such call we deal with regularly. On investigation of the fault codes the DPF pressure sensor seems to be at fault, but the rubber pipes located near the DPF may have melted through. And codes for gl...

...In the past mechanics have muddled by with just a multimeter as their trusted diagnostic friend. No longer is this the case. Every day on the helpline we are asked to help with ever more complicated problems on modern vehicles, only to discover that the mechanic has only a multimeter to...

...This vehicle suffers with a poor idle quality and fault codes for high fuel rail pressure. This vehicle has a pressure relief valve located in the fuel rail. A mechanical devise to relieve over-pressure on the fuel rail. This valve has been know to fail. When removing this valve it ofte...

...  ​Recently, we have noticed a large number of garages calling the Helpline with faults logged for catalyst efficiency below threshold, only to be told the garage has recently replaced the CAT following a failure of the original part. The customer then returns a few weeks lat...

...Over the last year, we have been getting a steady stream of enquiries about how Stop-Start works. Most garages have some idea of the basic principals of some systems, but there are many problems associated with Stop-Start operation across a wide range of vehicle types.     ...

...Steve Carter of eXponentia takes us through a not uncommon fault that he observed in a Ford Mondeo TDCi, and shows how to identify and repair the fault in a timely manner.  Although this fault was unusual in its severity, the fault itself is not uncommon and given that this par...

...The importance of system knowledge for a good diagnostic process is now one of the primary factors for an accurate diagnosis of modern systems.Time taken to understand how every components in the system behaves in operation is a key factor.     Recently we have had several...

...In 1995 BMW introduced the EWS2 system for passive immobilisation of the engine management systems. This was the first time they installed transponders into the ignition key with a rolling type encryption code. The main function was that each time the key was cycled, the code in the tr...



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