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The B8 is MQB, but only half its parts are shared with a Golf 7. A prefix-by-prefix map of clusters, split-unit infotainment, Kessy and the component protection that stops most retrofits.
Passat B8 (3G) Platform Guide: Cluster, Kessy and Infotainment Fitment by Part Family Read More »
A flashing check engine light is not a coil pack diagnosis. How to read per-cylinder misfire counters, which coil family belongs to which engine, and the mixture faults that imitate ignition failure.
Misfire and Rough Idle on EA111 and EA888: Coils, Plugs, MAP Sensors and Throttle Bodies Read More »
Fitting CarPlay to a PQ35 or PQ46 car is a harness job, not a radio job. The four units worth using, the quadlock checks that decide the install, and the sleep fault that flattens batteries.
PQ Platform Radio Upgrade: RCD510 and RCD420 to RCD330G Plus or MIB2 Read More »
Same part number, two very different cartons. How to choose between a full kit and a bare module, and the frequency and generation traps that cause repeat visits.
TPMS Kits vs Bare Control Units: What’s in the Box, and When the Module Alone Is Right Read More »
A flat battery is a measurement problem, not a parts problem. Sleep windows, clamp-meter technique, fuse voltage drop and the modules that keep an MQB car awake.
Quiescent Current Diagnosis on MQB: Finding the Module That Won’t Sleep Read More »
The wheel bolts on in an hour; the LIN chain is what decides whether the buttons work. A diagnostic-first guide to clock springs, column modules, decoders and coding.
Buttons That Don’t Talk: Wiring a Retrofit Multifunction Steering Wheel on PQ and MQB Read More »
Body code prefixes, door module limits, radar bracket placement and the immobiliser gate that decides whether a 12.3 inch cluster can be fitted.
The Audi A3 8V Retrofit Map: Mirrors, Side Assist, Tail Lights and Virtual Cockpit Read More »
A triage order for dark infotainment screens on MQB: display, head unit or the harness between them, plus when a repair kit beats a full assembly.
Black Screen, Live Audio: Splitting a Dead MIB Display from a Dead Head Unit Read More »
Why a climate panel swap is really a sensor and servo job, what has to be coded in address 08, and the console trim that comes apart with it.
Climatic to Climatronic on MQB: Panel, Servos and the Centre Switch Row Read More »
Which upper and lower grille fits which body, where the radar bracket changes the part number, and how emblem diameters differ across Golf 5, Golf 7 and Polo 6R.
Grille and Badge Fitment on the Golf 7 Range: Facelift Split, GTI Trim and ACC Brackets Read More »