Multi-brand auto repair shop in Unterengstringen near Zurich for service, repairs, air-conditioning service and e-mobility for all makes.
garage mobilhotz ag
Alte Schulstrasse 21, 8103 Unterengstringen (ZH)New on Amplifa
About garage mobilhotz ag
The garage mobilhotz ag is a compact, innovative car dealership in Unterengstringen near Zurich and, as a multi-brand repair shop, offers all services related to the automobile. Its service portfolio includes service and inspection, repairs, bodywork restoration, tyre service, transmission and engine overhauls, trailer hitches, suspension modifications, load upgrades up to 3.5 tonnes as well as retrofits for VW California campers. A core competency is automotive air-conditioning service with fully automatic air-conditioning service stations for R134a and R1234yf, including leak detection, conversion of the banned refrigerant R12 to R134a and air-conditioning system disinfection. Since 2012, the company has been certified for handling and repairing high-voltage vehicles (PHEV, HEV, EV) and, as an independent workshop, also services Tesla vehicles. The underground workshop offers space for around 14 vehicles and is equipped with five lifting platforms (up to 4 t load capacity), Bosch diagnostic systems, test devices for VW/Audi/SEAT/Škoda/BMW/Porsche and a FLIR thermal imaging camera. Certified automotive mechatronics technicians (eidg. FZ) and diagnosticians (eidg. FA) work according to manufacturer specifications, so factory warranties are preserved.
- Site
- Unterengstringen
- Processes
- Air-conditioning service (refrigerant recycling, filling R134a/R1234yf, evacuation), Air-conditioning diagnostics (leak detection with UV light/contrast agent, fog generator,, Air-conditioning conversion from R12 to R134a, Engine performance enhancement / chip tuning (plug & play auxiliary control unit), Car service and repairs of all makes (service, inspection, maintenance), Bodywork restoration (bodywork work), High-voltage repairs PHEV/HEV/EV (certified since 2012), Tyre service (mounting, balancing, stowing)
- Materials
- R134a refrigerant, R1234yf refrigerant, R12 refrigerant (CFC, banned, conversion), PAG refrigeration oil, POE refrigeration oil, R12 refrigerant (CFC)
- Certificates
- High-voltage certification (PHEV/HEV/EV repairs), High-voltage certification (PHEV/HEV/EV)
- Industries
- Automotive service and repair, Fleet operators
- 01
Appointment scheduling and vehicle acceptance
- 02
Diagnostics (oscilloscopy, thermography, endoscopy, computer-assisted
- 03
Service, maintenance and repair
- 04
Bodywork restoration and accessory retrofits
- 05
Function test, documentation and service record
Refrigerants and operating fluids
R134a refrigerant
Standard refrigerant for passenger car air-conditioning systems, dosed to the exact gram during filling.
R1234yf refrigerant
Current refrigerant for newer vehicles including hybrid and electric vehicles with heat pumps.
R12 refrigerant (CFC)
Banned since July 1998; mobilhotz offers permanent conversion to R134a.
PAG refrigeration oil
Lubricating oil for air-conditioning compressors, injected electronically metered together with the refrigerant.
POE refrigeration oil
Refrigeration oil for air-conditioning systems of electric and hybrid vehicles.
Locations
Unterengstringen
CHWorkshop and car dealership
- Part weight / size
- Lifting platforms up to 4 t load capacity
- Materials
- R134a, R1234yf, R12 (conversion), PAG/POE refrigeration oil
- 2 two-post lifts up to 3.5 t
- 2 double-scissor lifting platforms up to 3.5 t
- 1 scissor lift with free lift up to 4 t
- BOSCH air-conditioning service station ACS 752
- TEXA BiGAS 780R air-conditioning service station
- BOSCH KTS 5XX / 6XX / 650 / DCU diagnostic systems
- BOSCH FSA 500plus vehicle system analysis
- FLIR thermal imaging camera
- Compressed air and drying system 10 bar
- Four-media feed system
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Air-conditioning service (refrigerant recycling, filling R134a/R1234yf, evacuation)Surface | – | – | – | – | R134a, R1234yf, R12, PAG refrigeration oil, POE |
| Air-conditioning diagnostics (leak detection with UV light/contrast agent, fog generator,Testing | – | – | – | – | – |
| Air-conditioning conversion from R12 to R134aAssembly | – | – | – | – | R134a |
| Engine performance enhancement / chip tuning (plug & play auxiliary control unit)Engineering | – | – | – | – | – |
| Car service and repairs of all makes (service, inspection, maintenance)Assembly | – | – | – | – | – |
| Bodywork restoration (bodywork work)Assembly | – | – | – | – | – |
| High-voltage repairs PHEV/HEV/EV (certified since 2012)Assembly | – | – | – | – | – |
| Tyre service (mounting, balancing, stowing)Assembly | – | – | – | – | – |
| Chassis measurement and steering geometry adjustmentTesting | – | – | – | – | – |
| Trailer hitch / towing equipment installation up to 3.5 t trailer loadAssembly | – | – | – | – | – |
| Load upgrade of vehicles up to 3500 kg (suspension modification)Assembly | – | – | 3500 kg | – | – |
| Air suspension retrofit (VB-Air VB-FullAir 2C/4C)Assembly | – | – | – | – | – |
| Sports suspension/coilover suspension retrofit (Eibach, Seikel)Assembly | – | – | – | – | – |
| Transmission overhaul and repair (Haldex, DSG 7-speed)Assembly | – | – | – | – | – |
| Engine replacement (VW T5/T6 CFCA/CXEB) and engine technologyAssembly | – | – | – | – | – |
| Electric motor and drive transmission overhaul (Audi e-tron)Assembly | – | – | – | – | – |
| Vehicle diagnostics (oscilloscopy, endoscopy, stethoscopy, FSA 500, computer-assisted diagnostics)Testing | – | – | – | – | – |
| Multimedia/navigation retrofit (DAB+, CarPlay, Android Auto)Assembly | – | – | – | – | – |
| Accessory retrofit for VW California (outdoor shower, shelves, drawers, ISO-top insulation)Assembly | – | – | – | – | Aluminium |
| Control unit coding, programming, parameterizationEngineering | – | – | – | – | – |
| Tesla service, maintenance, diagnostics and repairs (independent Tesla workshop)Assembly | – | – | – | – | – |
| Air-conditioning system disinfectionSurface | – | – | – | – | – |
12 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Two-post lift | – | 2 | – | – | Unterengstringen |
| Double-scissor lifting platform | – | 2 | Load capacity up to 3.5 tonnes | – | Unterengstringen |
| Scissor lift with free lift | – | 1 | Load capacity up to 4 tonnes | – | Unterengstringen |
| Air-conditioning service station | BOSCH ACS 752 | – | – | – | Unterengstringen |
| Air-conditioning service station | TEXA BiGAS 780R | – | – | – | Unterengstringen |
| Multi-brand diagnostic system | BOSCH KTS 5XX | – | – | – | Unterengstringen |
| Diagnostic system | BOSCH KTS 6XX | – | – | – | Unterengstringen |
| Diagnostic system | BOSCH KTS 650 | – | – | – | Unterengstringen |
| Diagnostic system | BOSCH DCU | – | – | – | Unterengstringen |
| Vehicle system analysis device | BOSCH FSA 500plus | – | – | – | Unterengstringen |
| Thermal imaging camera | FLIR | – | – | – | Unterengstringen |
| Compressed air and drying system | – | 1 | 10 bar | – | Unterengstringen |
Additional services
Reference customers
Quality and certification
All work is carried out according to manufacturer specifications with original or equivalent spare parts, so factory warranties are preserved. Service and repair data is documented electronically and secured in the digital service record.
| Evidence | Unterengstringen |
|---|---|
| High-voltage certification (PHEV/HEV/EV) |
History
- 1998
Ban of refrigerant R12; mobilhotz offers conversion of air-conditioning systems to R134a.
- 2012
Certification for handling and repairing high-voltage vehicles (PHEV/HEV/EV).
- 2014
Operation of a fully electric VW e-Up as a customer replacement vehicle.