My Passat (116,000 mi.) has been flashing the ABS, BRAKE and OIL LAMP light warnings on my dash intermittently, beeping for 3 beeps (2-3 times a day, slow or fast speeds, using the brakes or not using the brakes) and at the same time the tachometer does not work. The shop I took it to said no codes were stored.

Do I have a bad instrument panel cluster? Are they some ABS pin connections I need to change? How would these affect the tachometer and oil pressure lamp coming on? Should I buy a new instrument panel cluster? Can I install it myself? Where do I buy them and can I change it out myself and with what tools?

Thanks.